Merge

1 files changed, 6847 insertions, 377 deletions

diff --git a/indra/newview/llvoiceclient.cpp b/indra/newview/llvoiceclient.cpp
index e067754e3e..2238acd643 100644
--- a/indra/newview/llvoiceclient.cpp
+++ b/indra/newview/llvoiceclient.cpp
@@ -1,6 +1,6 @@
  /** 
  * @file llvoiceclient.cpp
- * @brief Voice client delegation class implementation.
+ * @brief Implementation of LLVoiceClient class which is the interface to the voice client process.
  *
  * $LicenseInfo:firstyear=2001&license=viewergpl$
  * 
@@ -17,7 +17,8 @@
  * There are special exceptions to the terms and conditions of the GPL as
  * it is applied to this Source Code. View the full text of the exception
  * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
  * 
  * By copying, modifying or distributing this software, you acknowledge
  * that you have read and understood your obligations described above,
@@ -31,312 +32,5421 @@
 
 #include "llviewerprecompiledheaders.h"
 #include "llvoiceclient.h"
-#include "llviewercontrol.h"
-#include "llviewerwindow.h"
-#include "llvoicedw.h"
-#include "llvoicevivox.h"
-#include "llviewernetwork.h"
-#include "llhttpnode.h"
+
+#include <boost/tokenizer.hpp>
+
+// library includes
 #include "llnotificationsutil.h"
 #include "llsdserialize.h"
-#include "llui.h"
+#include "llsdutil.h"
 
-const F32 LLVoiceClient::OVERDRIVEN_POWER_LEVEL = 0.7f;
 
-std::string LLVoiceClientStatusObserver::status2string(LLVoiceClientStatusObserver::EStatusType inStatus)
+// project includes
+#include "llvoavatar.h"
+#include "llbufferstream.h"
+#include "llfile.h"
+#ifdef LL_STANDALONE
+# include "expat.h"
+#else
+# include "expat/expat.h"
+#endif
+#include "llcallbacklist.h"
+#include "llcallingcard.h"   // for LLFriendObserver
+#include "llviewerregion.h"
+#include "llviewernetwork.h"		// for gGridChoice
+#include "llbase64.h"
+#include "llviewercontrol.h"
+#include "llkeyboard.h"
+#include "llappviewer.h"	// for gDisconnected, gDisableVoice
+#include "llmutelist.h"  // to check for muted avatars
+#include "llagent.h"
+#include "llvoavatarself.h"
+#include "llcachename.h"
+#include "llimview.h" // for LLIMMgr
+#include "llparcel.h"
+#include "llviewerparcelmgr.h"
+//#include "llfirstuse.h"
+#include "llspeakers.h"
+#include "lltrans.h"
+#include "llviewerwindow.h"
+#include "llviewercamera.h"
+#include "llvoavatarself.h"
+#include "llvoicechannel.h"
+
+// for base64 decoding
+#include "apr_base64.h"
+
+// for SHA1 hash
+#include "apr_sha1.h"
+
+// for MD5 hash
+#include "llmd5.h"
+
+#define USE_SESSION_GROUPS 0
+
+static bool sConnectingToAgni = false;
+F32 LLVoiceClient::OVERDRIVEN_POWER_LEVEL = 0.7f;
+
+const F32 LLVoiceClient::VOLUME_MIN = 0.f;
+const F32 LLVoiceClient::VOLUME_DEFAULT = 0.5f;
+const F32 LLVoiceClient::VOLUME_MAX = 1.0f;
+
+const F32 VOLUME_SCALE_VIVOX = 0.01f;
+
+const F32 SPEAKING_TIMEOUT = 1.f;
+
+const int VOICE_MAJOR_VERSION = 1;
+const int VOICE_MINOR_VERSION = 0;
+
+LLVoiceClient *gVoiceClient = NULL;
+
+// Don't retry connecting to the daemon more frequently than this:
+const F32 CONNECT_THROTTLE_SECONDS = 1.0f;
+
+// Don't send positional updates more frequently than this:
+const F32 UPDATE_THROTTLE_SECONDS = 0.1f;
+
+const F32 LOGIN_RETRY_SECONDS = 10.0f;
+const int MAX_LOGIN_RETRIES = 12;
+
+// Defines the maximum number of times(in a row) "stateJoiningSession" case for spatial channel is reached in stateMachine()
+// which is treated as normal. If this number is exceeded we suspect there is a problem with connection
+// to voice server (EXT-4313). When voice works correctly, there is from 1 to 15 times. 50 was chosen 
+// to make sure we don't make mistake when slight connection problems happen- situation when connection to server is 
+// blocked is VERY rare and it's better to sacrifice response time in this situation for the sake of stability.
+const int MAX_NORMAL_JOINING_SPATIAL_NUM = 50;
+
+static void setUUIDFromStringHash(LLUUID &uuid, const std::string &str)
 {
-	std::string result = "UNKNOWN";
+	LLMD5 md5_uuid;
+	md5_uuid.update((const unsigned char*)str.data(), str.size());
+	md5_uuid.finalize();
+	md5_uuid.raw_digest(uuid.mData);
+}
+
+static int scale_mic_volume(float volume)
+{
+	// incoming volume has the range [0.0 ... 2.0], with 1.0 as the default.
+	// Map it to Vivox levels as follows: 0.0 -> 30, 1.0 -> 50, 2.0 -> 70
+	return 30 + (int)(volume * 20.0f);
+}
+
+static int scale_speaker_volume(float volume)
+{
+	// incoming volume has the range [0.0 ... 1.0], with 0.5 as the default.
+	// Map it to Vivox levels as follows: 0.0 -> 30, 0.5 -> 50, 1.0 -> 70
+	return 30 + (int)(volume * 40.0f);
+}
+
+class LLViewerVoiceAccountProvisionResponder :
+	public LLHTTPClient::Responder
+{
+public:
+	LLViewerVoiceAccountProvisionResponder(int retries)
+	{
+		mRetries = retries;
+	}
+
+	virtual void error(U32 status, const std::string& reason)
+	{
+		if ( mRetries > 0 )
+		{
+			LL_WARNS("Voice") << "ProvisionVoiceAccountRequest returned an error, retrying.  status = " << status << ", reason = \"" << reason << "\"" << LL_ENDL;
+			if ( gVoiceClient ) gVoiceClient->requestVoiceAccountProvision(
+				mRetries - 1);
+		}
+		else
+		{
+			LL_WARNS("Voice") << "ProvisionVoiceAccountRequest returned an error, too many retries (giving up).  status = " << status << ", reason = \"" << reason << "\"" << LL_ENDL;
+			if ( gVoiceClient ) gVoiceClient->giveUp();
+		}
+	}
+
+	virtual void result(const LLSD& content)
+	{
+		if ( gVoiceClient )
+		{
+			std::string voice_sip_uri_hostname;
+			std::string voice_account_server_uri;
+			
+			LL_DEBUGS("Voice") << "ProvisionVoiceAccountRequest response:" << ll_pretty_print_sd(content) << LL_ENDL;
+			
+			if(content.has("voice_sip_uri_hostname"))
+				voice_sip_uri_hostname = content["voice_sip_uri_hostname"].asString();
+			
+			// this key is actually misnamed -- it will be an entire URI, not just a hostname.
+			if(content.has("voice_account_server_name"))
+				voice_account_server_uri = content["voice_account_server_name"].asString();
+			
+			gVoiceClient->login(
+				content["username"].asString(),
+				content["password"].asString(),
+				voice_sip_uri_hostname,
+				voice_account_server_uri);
+		}
+	}
+
+private:
+	int mRetries;
+};
+
+/** 
+ * @class LLVivoxProtocolParser
+ * @brief This class helps construct new LLIOPipe specializations
+ * @see LLIOPipe
+ *
+ * THOROUGH_DESCRIPTION
+ */
+class LLVivoxProtocolParser : public LLIOPipe
+{
+	LOG_CLASS(LLVivoxProtocolParser);
+public:
+	LLVivoxProtocolParser();
+	virtual ~LLVivoxProtocolParser();
+
+protected:
+	/* @name LLIOPipe virtual implementations
+	 */
+	//@{
+	/** 
+	 * @brief Process the data in buffer
+	 */
+	virtual EStatus process_impl(
+		const LLChannelDescriptors& channels,
+		buffer_ptr_t& buffer,
+		bool& eos,
+		LLSD& context,
+		LLPumpIO* pump);
+	//@}
 	
-	// Prevent copy-paste errors when updating this list...
-#define CASE(x)  case x:  result = #x;  break
+	std::string 	mInput;
 	
-	switch(inStatus)
+	// Expat control members
+	XML_Parser		parser;
+	int				responseDepth;
+	bool			ignoringTags;
+	bool			isEvent;
+	int				ignoreDepth;
+
+	// Members for processing responses. The values are transient and only valid within a call to processResponse().
+	bool			squelchDebugOutput;
+	int				returnCode;
+	int				statusCode;
+	std::string		statusString;
+	std::string		requestId;
+	std::string		actionString;
+	std::string		connectorHandle;
+	std::string		versionID;
+	std::string		accountHandle;
+	std::string		sessionHandle;
+	std::string		sessionGroupHandle;
+	std::string		alias;
+	std::string		applicationString;
+
+	// Members for processing events. The values are transient and only valid within a call to processResponse().
+	std::string		eventTypeString;
+	int				state;
+	std::string		uriString;
+	bool			isChannel;
+	bool			incoming;
+	bool			enabled;
+	std::string		nameString;
+	std::string		audioMediaString;
+	std::string		displayNameString;
+	std::string		deviceString;
+	int				participantType;
+	bool			isLocallyMuted;
+	bool			isModeratorMuted;
+	bool			isSpeaking;
+	int				volume;
+	F32				energy;
+	std::string		messageHeader;
+	std::string		messageBody;
+	std::string		notificationType;
+	bool			hasText;
+	bool			hasAudio;
+	bool			hasVideo;
+	bool			terminated;
+	std::string		blockMask;
+	std::string		presenceOnly;
+	std::string		autoAcceptMask;
+	std::string		autoAddAsBuddy;
+	int				numberOfAliases;
+	std::string		subscriptionHandle;
+	std::string		subscriptionType;
+		
+
+	// Members for processing text between tags
+	std::string		textBuffer;
+	bool			accumulateText;
+	
+	void			reset();
+
+	void			processResponse(std::string tag);
+
+static void XMLCALL ExpatStartTag(void *data, const char *el, const char **attr);
+static void XMLCALL ExpatEndTag(void *data, const char *el);
+static void XMLCALL ExpatCharHandler(void *data, const XML_Char *s, int len);
+
+	void			StartTag(const char *tag, const char **attr);
+	void			EndTag(const char *tag);
+	void			CharData(const char *buffer, int length);
+	
+};
+
+LLVivoxProtocolParser::LLVivoxProtocolParser()
+{
+	parser = NULL;
+	parser = XML_ParserCreate(NULL);
+	
+	reset();
+}
+
+void LLVivoxProtocolParser::reset()
+{
+	responseDepth = 0;
+	ignoringTags = false;
+	accumulateText = false;
+	energy = 0.f;
+	hasText = false;
+	hasAudio = false;
+	hasVideo = false;
+	terminated = false;
+	ignoreDepth = 0;
+	isChannel = false;
+	incoming = false;
+	enabled = false;
+	isEvent = false;
+	isLocallyMuted = false;
+	isModeratorMuted = false;
+	isSpeaking = false;
+	participantType = 0;
+	squelchDebugOutput = false;
+	returnCode = -1;
+	state = 0;
+	statusCode = 0;
+	volume = 0;
+	textBuffer.clear();
+	alias.clear();
+	numberOfAliases = 0;
+	applicationString.clear();
+}
+
+//virtual 
+LLVivoxProtocolParser::~LLVivoxProtocolParser()
+{
+	if (parser)
+		XML_ParserFree(parser);
+}
+
+// virtual
+LLIOPipe::EStatus LLVivoxProtocolParser::process_impl(
+	const LLChannelDescriptors& channels,
+	buffer_ptr_t& buffer,
+	bool& eos,
+	LLSD& context,
+	LLPumpIO* pump)
+{
+	LLBufferStream istr(channels, buffer.get());
+	std::ostringstream ostr;
+	while (istr.good())
 	{
-			CASE(STATUS_LOGIN_RETRY);
-			CASE(STATUS_LOGGED_IN);
-			CASE(STATUS_JOINING);
-			CASE(STATUS_JOINED);
-			CASE(STATUS_LEFT_CHANNEL);
-			CASE(STATUS_VOICE_DISABLED);
-			CASE(BEGIN_ERROR_STATUS);
-			CASE(ERROR_CHANNEL_FULL);
-			CASE(ERROR_CHANNEL_LOCKED);
-			CASE(ERROR_NOT_AVAILABLE);
-			CASE(ERROR_UNKNOWN);
-		default:
-			break;
+		char buf[1024];
+		istr.read(buf, sizeof(buf));
+		mInput.append(buf, istr.gcount());
 	}
 	
-#undef CASE
+	// Look for input delimiter(s) in the input buffer.  If one is found, send the message to the xml parser.
+	int start = 0;
+	int delim;
+	while((delim = mInput.find("\n\n\n", start)) != std::string::npos)
+	{	
+		
+		// Reset internal state of the LLVivoxProtocolParser (no effect on the expat parser)
+		reset();
+		
+		XML_ParserReset(parser, NULL);
+		XML_SetElementHandler(parser, ExpatStartTag, ExpatEndTag);
+		XML_SetCharacterDataHandler(parser, ExpatCharHandler);
+		XML_SetUserData(parser, this);	
+		XML_Parse(parser, mInput.data() + start, delim - start, false);
+		
+		// If this message isn't set to be squelched, output the raw XML received.
+		if(!squelchDebugOutput)
+		{
+			LL_DEBUGS("Voice") << "parsing: " << mInput.substr(start, delim - start) << LL_ENDL;
+		}
+		
+		start = delim + 3;
+	}
 	
-	return result;
+	if(start != 0)
+		mInput = mInput.substr(start);
+
+	LL_DEBUGS("VivoxProtocolParser") << "at end, mInput is: " << mInput << LL_ENDL;
+	
+	if(!gVoiceClient->mConnected)
+	{
+		// If voice has been disabled, we just want to close the socket.  This does so.
+		LL_INFOS("Voice") << "returning STATUS_STOP" << LL_ENDL;
+		return STATUS_STOP;
+	}
+	
+	return STATUS_OK;
+}
+
+void XMLCALL LLVivoxProtocolParser::ExpatStartTag(void *data, const char *el, const char **attr)
+{
+	if (data)
+	{
+		LLVivoxProtocolParser	*object = (LLVivoxProtocolParser*)data;
+		object->StartTag(el, attr);
+	}
+}
+
+// --------------------------------------------------------------------------------
+
+void XMLCALL LLVivoxProtocolParser::ExpatEndTag(void *data, const char *el)
+{
+	if (data)
+	{
+		LLVivoxProtocolParser	*object = (LLVivoxProtocolParser*)data;
+		object->EndTag(el);
+	}
+}
+
+// --------------------------------------------------------------------------------
+
+void XMLCALL LLVivoxProtocolParser::ExpatCharHandler(void *data, const XML_Char *s, int len)
+{
+	if (data)
+	{
+		LLVivoxProtocolParser	*object = (LLVivoxProtocolParser*)data;
+		object->CharData(s, len);
+	}
+}
+
+// --------------------------------------------------------------------------------
+
+
+void LLVivoxProtocolParser::StartTag(const char *tag, const char **attr)
+{
+	// Reset the text accumulator. We shouldn't have strings that are inturrupted by new tags
+	textBuffer.clear();
+	// only accumulate text if we're not ignoring tags.
+	accumulateText = !ignoringTags;
+	
+	if (responseDepth == 0)
+	{	
+		isEvent = !stricmp("Event", tag);
+		
+		if (!stricmp("Response", tag) || isEvent)
+		{
+			// Grab the attributes
+			while (*attr)
+			{
+				const char	*key = *attr++;
+				const char	*value = *attr++;
+				
+				if (!stricmp("requestId", key))
+				{
+					requestId = value;
+				}
+				else if (!stricmp("action", key))
+				{
+					actionString = value;
+				}
+				else if (!stricmp("type", key))
+				{
+					eventTypeString = value;
+				}
+			}
+		}
+		LL_DEBUGS("VivoxProtocolParser") << tag << " (" << responseDepth << ")"  << LL_ENDL;
+	}
+	else
+	{
+		if (ignoringTags)
+		{
+			LL_DEBUGS("VivoxProtocolParser") << "ignoring tag " << tag << " (depth = " << responseDepth << ")" << LL_ENDL;
+		}
+		else
+		{
+			LL_DEBUGS("VivoxProtocolParser") << tag << " (" << responseDepth << ")"  << LL_ENDL;
+	
+			// Ignore the InputXml stuff so we don't get confused
+			if (!stricmp("InputXml", tag))
+			{
+				ignoringTags = true;
+				ignoreDepth = responseDepth;
+				accumulateText = false;
+
+				LL_DEBUGS("VivoxProtocolParser") << "starting ignore, ignoreDepth is " << ignoreDepth << LL_ENDL;
+			}
+			else if (!stricmp("CaptureDevices", tag))
+			{
+				gVoiceClient->clearCaptureDevices();
+			}
+			else if (!stricmp("RenderDevices", tag))
+			{
+				gVoiceClient->clearRenderDevices();
+			}
+			else if (!stricmp("CaptureDevice", tag))
+			{
+				deviceString.clear();
+			}
+			else if (!stricmp("RenderDevice", tag))
+			{
+				deviceString.clear();
+			}
+			else if (!stricmp("Buddies", tag))
+			{
+				gVoiceClient->deleteAllBuddies();
+			}
+			else if (!stricmp("BlockRules", tag))
+			{
+				gVoiceClient->deleteAllBlockRules();
+			}
+			else if (!stricmp("AutoAcceptRules", tag))
+			{
+				gVoiceClient->deleteAllAutoAcceptRules();
+			}
+			
+		}
+	}
+	responseDepth++;
+}
+
+// --------------------------------------------------------------------------------
+
+void LLVivoxProtocolParser::EndTag(const char *tag)
+{
+	const std::string& string = textBuffer;
+
+	responseDepth--;
+
+	if (ignoringTags)
+	{
+		if (ignoreDepth == responseDepth)
+		{
+			LL_DEBUGS("VivoxProtocolParser") << "end of ignore" << LL_ENDL;
+			ignoringTags = false;
+		}
+		else
+		{
+			LL_DEBUGS("VivoxProtocolParser") << "ignoring tag " << tag << " (depth = " << responseDepth << ")" << LL_ENDL;
+		}
+	}
+	
+	if (!ignoringTags)
+	{
+		LL_DEBUGS("VivoxProtocolParser") << "processing tag " << tag << " (depth = " << responseDepth << ")" << LL_ENDL;
+
+		// Closing a tag. Finalize the text we've accumulated and reset
+		if (!stricmp("ReturnCode", tag))
+			returnCode = strtol(string.c_str(), NULL, 10);
+		else if (!stricmp("SessionHandle", tag))
+			sessionHandle = string;
+		else if (!stricmp("SessionGroupHandle", tag))
+			sessionGroupHandle = string;
+		else if (!stricmp("StatusCode", tag))
+			statusCode = strtol(string.c_str(), NULL, 10);
+		else if (!stricmp("StatusString", tag))
+			statusString = string;
+		else if (!stricmp("ParticipantURI", tag))
+			uriString = string;
+		else if (!stricmp("Volume", tag))
+			volume = strtol(string.c_str(), NULL, 10);
+		else if (!stricmp("Energy", tag))
+			energy = (F32)strtod(string.c_str(), NULL);
+		else if (!stricmp("IsModeratorMuted", tag))
+			isModeratorMuted = !stricmp(string.c_str(), "true");
+		else if (!stricmp("IsSpeaking", tag))
+			isSpeaking = !stricmp(string.c_str(), "true");
+		else if (!stricmp("Alias", tag))
+			alias = string;
+		else if (!stricmp("NumberOfAliases", tag))
+			numberOfAliases = strtol(string.c_str(), NULL, 10);
+		else if (!stricmp("Application", tag))
+			applicationString = string;
+		else if (!stricmp("ConnectorHandle", tag))
+			connectorHandle = string;
+		else if (!stricmp("VersionID", tag))
+			versionID = string;
+		else if (!stricmp("AccountHandle", tag))
+			accountHandle = string;
+		else if (!stricmp("State", tag))
+			state = strtol(string.c_str(), NULL, 10);
+		else if (!stricmp("URI", tag))
+			uriString = string;
+		else if (!stricmp("IsChannel", tag))
+			isChannel = !stricmp(string.c_str(), "true");
+		else if (!stricmp("Incoming", tag))
+			incoming = !stricmp(string.c_str(), "true");
+		else if (!stricmp("Enabled", tag))
+			enabled = !stricmp(string.c_str(), "true");
+		else if (!stricmp("Name", tag))
+			nameString = string;
+		else if (!stricmp("AudioMedia", tag))
+			audioMediaString = string;
+		else if (!stricmp("ChannelName", tag))
+			nameString = string;
+		else if (!stricmp("DisplayName", tag))
+			displayNameString = string;
+		else if (!stricmp("Device", tag))
+			deviceString = string;
+		else if (!stricmp("AccountName", tag))
+			nameString = string;
+		else if (!stricmp("ParticipantType", tag))
+			participantType = strtol(string.c_str(), NULL, 10);
+		else if (!stricmp("IsLocallyMuted", tag))
+			isLocallyMuted = !stricmp(string.c_str(), "true");
+		else if (!stricmp("MicEnergy", tag))
+			energy = (F32)strtod(string.c_str(), NULL);
+		else if (!stricmp("ChannelName", tag))
+			nameString = string;
+		else if (!stricmp("ChannelURI", tag))
+			uriString = string;
+		else if (!stricmp("BuddyURI", tag))
+			uriString = string;
+		else if (!stricmp("Presence", tag))
+			statusString = string;
+		else if (!stricmp("CaptureDevice", tag))
+		{
+			gVoiceClient->addCaptureDevice(deviceString);
+		}
+		else if (!stricmp("RenderDevice", tag))
+		{
+			gVoiceClient->addRenderDevice(deviceString);
+		}
+		else if (!stricmp("Buddy", tag))
+		{
+			gVoiceClient->processBuddyListEntry(uriString, displayNameString);
+		}
+		else if (!stricmp("BlockRule", tag))
+		{
+			gVoiceClient->addBlockRule(blockMask, presenceOnly);
+		}
+		else if (!stricmp("BlockMask", tag))
+			blockMask = string;
+		else if (!stricmp("PresenceOnly", tag))
+			presenceOnly = string;
+		else if (!stricmp("AutoAcceptRule", tag))
+		{
+			gVoiceClient->addAutoAcceptRule(autoAcceptMask, autoAddAsBuddy);
+		}
+		else if (!stricmp("AutoAcceptMask", tag))
+			autoAcceptMask = string;
+		else if (!stricmp("AutoAddAsBuddy", tag))
+			autoAddAsBuddy = string;
+		else if (!stricmp("MessageHeader", tag))
+			messageHeader = string;
+		else if (!stricmp("MessageBody", tag))
+			messageBody = string;
+		else if (!stricmp("NotificationType", tag))
+			notificationType = string;
+		else if (!stricmp("HasText", tag))
+			hasText = !stricmp(string.c_str(), "true");
+		else if (!stricmp("HasAudio", tag))
+			hasAudio = !stricmp(string.c_str(), "true");
+		else if (!stricmp("HasVideo", tag))
+			hasVideo = !stricmp(string.c_str(), "true");
+		else if (!stricmp("Terminated", tag))
+			terminated = !stricmp(string.c_str(), "true");
+		else if (!stricmp("SubscriptionHandle", tag))
+			subscriptionHandle = string;
+		else if (!stricmp("SubscriptionType", tag))
+			subscriptionType = string;
+		
+		textBuffer.clear();
+		accumulateText= false;
+		
+		if (responseDepth == 0)
+		{
+			// We finished all of the XML, process the data
+			processResponse(tag);
+		}
+	}
+}
+
+// --------------------------------------------------------------------------------
+
+void LLVivoxProtocolParser::CharData(const char *buffer, int length)
+{
+	/*
+		This method is called for anything that isn't a tag, which can be text you
+		want that lies between tags, and a lot of stuff you don't want like file formatting
+		(tabs, spaces, CR/LF, etc).
+		
+		Only copy text if we are in accumulate mode...
+	*/
+	if (accumulateText)
+		textBuffer.append(buffer, length);
+}
+
+// --------------------------------------------------------------------------------
+
+void LLVivoxProtocolParser::processResponse(std::string tag)
+{
+	LL_DEBUGS("VivoxProtocolParser") << tag << LL_ENDL;
+
+	// SLIM SDK: the SDK now returns a statusCode of "200" (OK) for success.  This is a change vs. previous SDKs.
+	// According to Mike S., "The actual API convention is that responses with return codes of 0 are successful, regardless of the status code returned",
+	// so I believe this will give correct behavior.
+	
+	if(returnCode == 0)
+		statusCode = 0;
+		
+	if (isEvent)
+	{
+		const char *eventTypeCstr = eventTypeString.c_str();
+		if (!stricmp(eventTypeCstr, "AccountLoginStateChangeEvent"))
+		{
+			gVoiceClient->accountLoginStateChangeEvent(accountHandle, statusCode, statusString, state);
+		}
+		else if (!stricmp(eventTypeCstr, "SessionAddedEvent"))
+		{
+			/*
+			<Event type="SessionAddedEvent">
+				<SessionGroupHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==_sg0</SessionGroupHandle>
+				<SessionHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==0</SessionHandle>
+				<Uri>sip:confctl-1408789@bhr.vivox.com</Uri>
+				<IsChannel>true</IsChannel>
+				<Incoming>false</Incoming>
+				<ChannelName />
+			</Event>
+			*/
+			gVoiceClient->sessionAddedEvent(uriString, alias, sessionHandle, sessionGroupHandle, isChannel, incoming, nameString, applicationString);
+		}
+		else if (!stricmp(eventTypeCstr, "SessionRemovedEvent"))
+		{
+			gVoiceClient->sessionRemovedEvent(sessionHandle, sessionGroupHandle);
+		}
+		else if (!stricmp(eventTypeCstr, "SessionGroupAddedEvent"))
+		{
+			gVoiceClient->sessionGroupAddedEvent(sessionGroupHandle);
+		}
+		else if (!stricmp(eventTypeCstr, "MediaStreamUpdatedEvent"))
+		{
+			/*
+			<Event type="MediaStreamUpdatedEvent">
+				<SessionGroupHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==_sg0</SessionGroupHandle>
+				<SessionHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==0</SessionHandle>
+				<StatusCode>200</StatusCode>
+				<StatusString>OK</StatusString>
+				<State>2</State>
+				<Incoming>false</Incoming>
+			</Event>
+			*/
+			gVoiceClient->mediaStreamUpdatedEvent(sessionHandle, sessionGroupHandle, statusCode, statusString, state, incoming);
+		}		
+		else if (!stricmp(eventTypeCstr, "TextStreamUpdatedEvent"))
+		{
+			/*
+			<Event type="TextStreamUpdatedEvent">
+				<SessionGroupHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==_sg1</SessionGroupHandle>
+				<SessionHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==1</SessionHandle>
+				<Enabled>true</Enabled>
+				<State>1</State>
+				<Incoming>true</Incoming>
+			</Event>
+			*/
+			gVoiceClient->textStreamUpdatedEvent(sessionHandle, sessionGroupHandle, enabled, state, incoming);
+		}
+		else if (!stricmp(eventTypeCstr, "ParticipantAddedEvent"))
+		{
+			/* 
+			<Event type="ParticipantAddedEvent">
+				<SessionGroupHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==_sg4</SessionGroupHandle>
+				<SessionHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==4</SessionHandle>
+				<ParticipantUri>sip:xI5auBZ60SJWIk606-1JGRQ==@bhr.vivox.com</ParticipantUri>
+				<AccountName>xI5auBZ60SJWIk606-1JGRQ==</AccountName>
+				<DisplayName />
+				<ParticipantType>0</ParticipantType>
+			</Event>
+			*/
+			gVoiceClient->participantAddedEvent(sessionHandle, sessionGroupHandle, uriString, alias, nameString, displayNameString, participantType);
+		}
+		else if (!stricmp(eventTypeCstr, "ParticipantRemovedEvent"))
+		{
+			/*
+			<Event type="ParticipantRemovedEvent">
+				<SessionGroupHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==_sg4</SessionGroupHandle>
+				<SessionHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==4</SessionHandle>
+				<ParticipantUri>sip:xtx7YNV-3SGiG7rA1fo5Ndw==@bhr.vivox.com</ParticipantUri>
+				<AccountName>xtx7YNV-3SGiG7rA1fo5Ndw==</AccountName>
+			</Event>
+			*/
+			gVoiceClient->participantRemovedEvent(sessionHandle, sessionGroupHandle, uriString, alias, nameString);
+		}
+		else if (!stricmp(eventTypeCstr, "ParticipantUpdatedEvent"))
+		{
+			/*
+			<Event type="ParticipantUpdatedEvent">
+				<SessionGroupHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==_sg0</SessionGroupHandle>
+				<SessionHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==0</SessionHandle>
+				<ParticipantUri>sip:xFnPP04IpREWNkuw1cOXlhw==@bhr.vivox.com</ParticipantUri>
+				<IsModeratorMuted>false</IsModeratorMuted>
+				<IsSpeaking>true</IsSpeaking>
+				<Volume>44</Volume>
+				<Energy>0.0879437</Energy>
+			</Event>
+			*/
+			
+			// These happen so often that logging them is pretty useless.
+			squelchDebugOutput = true;
+			
+			gVoiceClient->participantUpdatedEvent(sessionHandle, sessionGroupHandle, uriString, alias, isModeratorMuted, isSpeaking, volume, energy);
+		}
+		else if (!stricmp(eventTypeCstr, "AuxAudioPropertiesEvent"))
+		{
+			gVoiceClient->auxAudioPropertiesEvent(energy);
+		}
+		else if (!stricmp(eventTypeCstr, "BuddyPresenceEvent"))
+		{
+			gVoiceClient->buddyPresenceEvent(uriString, alias, statusString, applicationString);
+		}
+		else if (!stricmp(eventTypeCstr, "BuddyAndGroupListChangedEvent"))
+		{
+			// The buddy list was updated during parsing.
+			// Need to recheck against the friends list.
+			gVoiceClient->buddyListChanged();
+		}
+		else if (!stricmp(eventTypeCstr, "BuddyChangedEvent"))
+		{
+			/*
+			<Event type="BuddyChangedEvent">
+				<AccountHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==</AccountHandle>
+				<BuddyURI>sip:x9fFHFZjOTN6OESF1DUPrZQ==@bhr.vivox.com</BuddyURI>
+				<DisplayName>Monroe Tester</DisplayName>
+				<BuddyData />
+				<GroupID>0</GroupID>
+				<ChangeType>Set</ChangeType>
+			</Event>
+			*/		
+			// TODO: Question: Do we need to process this at all?
+		}
+		else if (!stricmp(eventTypeCstr, "MessageEvent"))  
+		{
+			gVoiceClient->messageEvent(sessionHandle, uriString, alias, messageHeader, messageBody, applicationString);
+		}
+		else if (!stricmp(eventTypeCstr, "SessionNotificationEvent"))  
+		{
+			gVoiceClient->sessionNotificationEvent(sessionHandle, uriString, notificationType);
+		}
+		else if (!stricmp(eventTypeCstr, "SubscriptionEvent"))  
+		{
+			gVoiceClient->subscriptionEvent(uriString, subscriptionHandle, alias, displayNameString, applicationString, subscriptionType);
+		}
+		else if (!stricmp(eventTypeCstr, "SessionUpdatedEvent"))  
+		{
+			/*
+			<Event type="SessionUpdatedEvent">
+				<SessionGroupHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==_sg0</SessionGroupHandle>
+				<SessionHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==0</SessionHandle>
+				<Uri>sip:confctl-9@bhd.vivox.com</Uri>
+				<IsMuted>0</IsMuted>
+				<Volume>50</Volume>
+				<TransmitEnabled>1</TransmitEnabled>
+				<IsFocused>0</IsFocused>
+				<SpeakerPosition><Position><X>0</X><Y>0</Y><Z>0</Z></Position></SpeakerPosition>
+				<SessionFontID>0</SessionFontID>
+			</Event>
+			*/
+			// We don't need to process this, but we also shouldn't warn on it, since that confuses people.
+		}
+		
+		else if (!stricmp(eventTypeCstr, "SessionGroupRemovedEvent"))  
+		{
+			/*
+			<Event type="SessionGroupRemovedEvent">
+				<SessionGroupHandle>c1_m1000xFnPP04IpREWNkuw1cOXlhw==_sg0</SessionGroupHandle>
+			</Event>
+			*/
+			// We don't need to process this, but we also shouldn't warn on it, since that confuses people.
+		}
+		else
+		{
+			LL_WARNS("VivoxProtocolParser") << "Unknown event type " << eventTypeString << LL_ENDL;
+		}
+	}
+	else
+	{
+		const char *actionCstr = actionString.c_str();
+		if (!stricmp(actionCstr, "Connector.Create.1"))
+		{
+			gVoiceClient->connectorCreateResponse(statusCode, statusString, connectorHandle, versionID);
+		}
+		else if (!stricmp(actionCstr, "Account.Login.1"))
+		{
+			gVoiceClient->loginResponse(statusCode, statusString, accountHandle, numberOfAliases);
+		}
+		else if (!stricmp(actionCstr, "Session.Create.1"))
+		{
+			gVoiceClient->sessionCreateResponse(requestId, statusCode, statusString, sessionHandle);			
+		}
+		else if (!stricmp(actionCstr, "SessionGroup.AddSession.1"))
+		{
+			gVoiceClient->sessionGroupAddSessionResponse(requestId, statusCode, statusString, sessionHandle);			
+		}
+		else if (!stricmp(actionCstr, "Session.Connect.1"))
+		{
+			gVoiceClient->sessionConnectResponse(requestId, statusCode, statusString);			
+		}
+		else if (!stricmp(actionCstr, "Account.Logout.1"))
+		{
+			gVoiceClient->logoutResponse(statusCode, statusString);			
+		}
+		else if (!stricmp(actionCstr, "Connector.InitiateShutdown.1"))
+		{
+			gVoiceClient->connectorShutdownResponse(statusCode, statusString);			
+		}
+		else if (!stricmp(actionCstr, "Account.ListBlockRules.1"))
+		{
+			gVoiceClient->accountListBlockRulesResponse(statusCode, statusString);						
+		}
+		else if (!stricmp(actionCstr, "Account.ListAutoAcceptRules.1"))
+		{
+			gVoiceClient->accountListAutoAcceptRulesResponse(statusCode, statusString);						
+		}
+		else if (!stricmp(actionCstr, "Session.Set3DPosition.1"))
+		{
+			// We don't need to process these, but they're so spammy we don't want to log them.
+			squelchDebugOutput = true;
+		}
+/*
+		else if (!stricmp(actionCstr, "Account.ChannelGetList.1"))
+		{
+			gVoiceClient->channelGetListResponse(statusCode, statusString);
+		}
+		else if (!stricmp(actionCstr, "Connector.AccountCreate.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Connector.MuteLocalMic.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Connector.MuteLocalSpeaker.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Connector.SetLocalMicVolume.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Connector.SetLocalSpeakerVolume.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Session.ListenerSetPosition.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Session.SpeakerSetPosition.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Session.AudioSourceSetPosition.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Session.GetChannelParticipants.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Account.ChannelCreate.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Account.ChannelUpdate.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Account.ChannelDelete.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Account.ChannelCreateAndInvite.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Account.ChannelFolderCreate.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Account.ChannelFolderUpdate.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Account.ChannelFolderDelete.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Account.ChannelAddModerator.1"))
+		{
+			
+		}
+		else if (!stricmp(actionCstr, "Account.ChannelDeleteModerator.1"))
+		{
+			
+		}
+*/
+	}
 }
 
+///////////////////////////////////////////////////////////////////////////////////////////////
 
+class LLVoiceClientMuteListObserver : public LLMuteListObserver
+{
+	/* virtual */ void onChange()  { gVoiceClient->muteListChanged();}
+};
+
+class LLVoiceClientFriendsObserver : public LLFriendObserver
+{
+public:
+	/* virtual */ void changed(U32 mask) { gVoiceClient->updateFriends(mask);}
+};
+
+static LLVoiceClientMuteListObserver mutelist_listener;
+static bool sMuteListListener_listening = false;
 
+static LLVoiceClientFriendsObserver *friendslist_listener = NULL;
 
 ///////////////////////////////////////////////////////////////////////////////////////////////
 
-LLVoiceClient::LLVoiceClient()
+class LLVoiceClientCapResponder : public LLHTTPClient::Responder
+{
+public:
+	LLVoiceClientCapResponder(void){};
+
+	virtual void error(U32 status, const std::string& reason);	// called with bad status codes
+	virtual void result(const LLSD& content);
+
+private:
+};
+
+void LLVoiceClientCapResponder::error(U32 status, const std::string& reason)
 {
-	mVoiceModule = NULL;
+	LL_WARNS("Voice") << "LLVoiceClientCapResponder::error("
+		<< status << ": " << reason << ")"
+		<< LL_ENDL;
+}
+
+void LLVoiceClientCapResponder::result(const LLSD& content)
+{
+	LLSD::map_const_iterator iter;
+	
+	LL_DEBUGS("Voice") << "ParcelVoiceInfoRequest response:" << ll_pretty_print_sd(content) << LL_ENDL;
+
+	if ( content.has("voice_credentials") )
+	{
+		LLSD voice_credentials = content["voice_credentials"];
+		std::string uri;
+		std::string credentials;
+
+		if ( voice_credentials.has("channel_uri") )
+		{
+			uri = voice_credentials["channel_uri"].asString();
+		}
+		if ( voice_credentials.has("channel_credentials") )
+		{
+			credentials =
+				voice_credentials["channel_credentials"].asString();
+		}
+
+		gVoiceClient->setSpatialChannel(uri, credentials);
+	}
+}
+
+
+
+#if LL_WINDOWS
+static HANDLE sGatewayHandle = 0;
+
+static bool isGatewayRunning()
+{
+	bool result = false;
+	if(sGatewayHandle != 0)		
+	{
+		DWORD waitresult = WaitForSingleObject(sGatewayHandle, 0);
+		if(waitresult != WAIT_OBJECT_0)
+		{
+			result = true;
+		}			
+	}
+	return result;
+}
+static void killGateway()
+{
+	if(sGatewayHandle != 0)
+	{
+		TerminateProcess(sGatewayHandle,0);
+	}
+}
+
+#else // Mac and linux
+
+static pid_t sGatewayPID = 0;
+static bool isGatewayRunning()
+{
+	bool result = false;
+	if(sGatewayPID != 0)
+	{
+		// A kill with signal number 0 has no effect, just does error checking.  It should return an error if the process no longer exists.
+		if(kill(sGatewayPID, 0) == 0)
+		{
+			result = true;
+		}
+	}
+	return result;
+}
+
+static void killGateway()
+{
+	if(sGatewayPID != 0)
+	{
+		kill(sGatewayPID, SIGTERM);
+	}
+}
+
+#endif
+
+class LLSpeakerVolumeStorage : public LLSingleton<LLSpeakerVolumeStorage>
+{
+	LOG_CLASS(LLSpeakerVolumeStorage);
+public:
+
+	/**
+	 * Stores volume level for specified user.
+	 *
+	 * @param[in] speaker_id - LLUUID of user to store volume level for.
+	 * @param[in] volume - volume level to be stored for user.
+	 */
+	void storeSpeakerVolume(const LLUUID& speaker_id, F32 volume);
+
+	/**
+	 * Gets stored volume level for specified speaker
+	 *
+	 * @param[in] speaker_id - LLUUID of user to retrieve volume level for.
+	 * @param[out] volume - set to stored volume if found, otherwise unmodified.
+	 * @return - true if a stored volume is found.
+	 */
+	bool getSpeakerVolume(const LLUUID& speaker_id, F32& volume);
+
+	/**
+	 * Removes stored volume level for specified user.
+	 *
+	 * @param[in] speaker_id - LLUUID of user to remove.
+	 */
+	void removeSpeakerVolume(const LLUUID& speaker_id);
+
+private:
+	friend class LLSingleton<LLSpeakerVolumeStorage>;
+	LLSpeakerVolumeStorage();
+	~LLSpeakerVolumeStorage();
+
+	const static std::string SETTINGS_FILE_NAME;
+
+	void load();
+	void save();
+
+	static F32 transformFromLegacyVolume(F32 volume_in);
+	static F32 transformToLegacyVolume(F32 volume_in);
+
+	typedef std::map<LLUUID, F32> speaker_data_map_t;
+	speaker_data_map_t mSpeakersData;
+};
+
+const std::string LLSpeakerVolumeStorage::SETTINGS_FILE_NAME = "volume_settings.xml";
+
+LLSpeakerVolumeStorage::LLSpeakerVolumeStorage()
+{
+	load();
+}
+
+LLSpeakerVolumeStorage::~LLSpeakerVolumeStorage()
+{
+	save();
+}
+
+void LLSpeakerVolumeStorage::storeSpeakerVolume(const LLUUID& speaker_id, F32 volume)
+{
+	if ((volume >= LLVoiceClient::VOLUME_MIN) && (volume <= LLVoiceClient::VOLUME_MAX))
+	{
+		mSpeakersData[speaker_id] = volume;
+
+		// Enable this when debugging voice slider issues.  It's way to spammy even for debug-level logging.
+		// LL_DEBUGS("Voice") << "Stored volume = " << volume <<  " for " << id << LL_ENDL;
+	}
+	else
+	{
+		LL_WARNS("Voice") << "Attempted to store out of range volume " << volume << " for " << speaker_id << LL_ENDL;
+		llassert(0);
+	}
+}
+
+bool LLSpeakerVolumeStorage::getSpeakerVolume(const LLUUID& speaker_id, F32& volume)
+{
+	speaker_data_map_t::const_iterator it = mSpeakersData.find(speaker_id);
+	
+	if (it != mSpeakersData.end())
+	{
+		volume = it->second;
+
+		// Enable this when debugging voice slider issues.  It's way to spammy even for debug-level logging.
+		// LL_DEBUGS("Voice") << "Retrieved stored volume = " << volume <<  " for " << id << LL_ENDL;
+
+		return true;
+	}
+
+	return false;
+}
+
+void LLSpeakerVolumeStorage::removeSpeakerVolume(const LLUUID& speaker_id)
+{
+	mSpeakersData.erase(speaker_id);
+
+	// Enable this when debugging voice slider issues.  It's way to spammy even for debug-level logging.
+	// LL_DEBUGS("Voice") << "Removing stored volume for  " << id << LL_ENDL;
+}
+
+/* static */ F32 LLSpeakerVolumeStorage::transformFromLegacyVolume(F32 volume_in)
+{
+	// Convert to linear-logarithmic [0.0..1.0] with 0.5 = 0dB
+	// from legacy characteristic composed of two square-curves
+	// that intersect at volume_in = 0.5, volume_out = 0.56
+
+	F32 volume_out = 0.f;
+	volume_in = llclamp(volume_in, 0.f, 1.0f);
+
+	if (volume_in <= 0.5f)
+	{
+		volume_out = volume_in * volume_in * 4.f * 0.56f;
+	}
+	else
+	{
+		volume_out = (1.f - 0.56f) * (4.f * volume_in * volume_in - 1.f) / 3.f + 0.56f;
+	}
+
+	return volume_out;
+}
+
+/* static */ F32 LLSpeakerVolumeStorage::transformToLegacyVolume(F32 volume_in)
+{
+	// Convert from linear-logarithmic [0.0..1.0] with 0.5 = 0dB
+	// to legacy characteristic composed of two square-curves
+	// that intersect at volume_in = 0.56, volume_out = 0.5
+
+	F32 volume_out = 0.f;
+	volume_in = llclamp(volume_in, 0.f, 1.0f);
+
+	if (volume_in <= 0.56f)
+	{
+		volume_out = sqrt(volume_in / (4.f * 0.56f));
+	}
+	else
+	{
+		volume_out = sqrt((3.f * (volume_in - 0.56f) / (1.f - 0.56f) + 1.f) / 4.f);
+	}
+
+	return volume_out;
+}
+
+void LLSpeakerVolumeStorage::load()
+{
+	// load per-resident voice volume information
+	std::string filename = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, SETTINGS_FILE_NAME);
+
+	LL_INFOS("Voice") << "Loading stored speaker volumes from: " << filename << LL_ENDL;
+
+	LLSD settings_llsd;
+	llifstream file;
+	file.open(filename);
+	if (file.is_open())
+	{
+		LLSDSerialize::fromXML(settings_llsd, file);
+	}
+
+	for (LLSD::map_const_iterator iter = settings_llsd.beginMap();
+		iter != settings_llsd.endMap(); ++iter)
+	{
+		// Maintain compatibility with 1.23 non-linear saved volume levels
+		F32 volume = transformFromLegacyVolume((F32)iter->second.asReal());
+
+		storeSpeakerVolume(LLUUID(iter->first), volume);
+	}
+}
+
+void LLSpeakerVolumeStorage::save()
+{
+	// If we quit from the login screen we will not have an SL account
+	// name.  Don't try to save, otherwise we'll dump a file in
+	// C:\Program Files\SecondLife\ or similar. JC
+	std::string user_dir = gDirUtilp->getLindenUserDir();
+	if (!user_dir.empty())
+	{
+		std::string filename = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, SETTINGS_FILE_NAME);
+		LLSD settings_llsd;
+
+		LL_INFOS("Voice") << "Saving stored speaker volumes to: " << filename << LL_ENDL;
+
+		for(speaker_data_map_t::const_iterator iter = mSpeakersData.begin(); iter != mSpeakersData.end(); ++iter)
+		{
+			// Maintain compatibility with 1.23 non-linear saved volume levels
+			F32 volume = transformToLegacyVolume(iter->second);
+
+			settings_llsd[iter->first.asString()] = volume;
+		}
+
+		llofstream file;
+		file.open(filename);
+		LLSDSerialize::toPrettyXML(settings_llsd, file);
+	}
+}
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+LLVoiceClient::LLVoiceClient() :
+	mState(stateDisabled),
+	mSessionTerminateRequested(false),
+	mRelogRequested(false),
+	mConnected(false),
+	mPump(NULL),
+	mSpatialJoiningNum(0),
+	
+	mTuningMode(false),
+	mTuningEnergy(0.0f),
+	mTuningMicVolume(0),
+	mTuningMicVolumeDirty(true),
+	mTuningSpeakerVolume(0),
+	mTuningSpeakerVolumeDirty(true),
+	mTuningExitState(stateDisabled),
+	
+	mAreaVoiceDisabled(false),
+	mAudioSession(NULL),
+	mAudioSessionChanged(false),
+	mNextAudioSession(NULL),
+	
+	mCurrentParcelLocalID(0),
+	mNumberOfAliases(0),
+	mCommandCookie(0),
+	mLoginRetryCount(0),
+	
+	mBuddyListMapPopulated(false),
+	mBlockRulesListReceived(false),
+	mAutoAcceptRulesListReceived(false),
+	mCaptureDeviceDirty(false),
+	mRenderDeviceDirty(false),
+	mSpatialCoordsDirty(false),
+
+	mPTTDirty(true),
+	mPTT(true),
+	mUsePTT(true),
+	mPTTIsMiddleMouse(false),
+	mPTTKey(0),
+	mPTTIsToggle(false),
+	mUserPTTState(false),
+	mMuteMic(false),
+	mFriendsListDirty(true),
+	
+	mEarLocation(0),
+	mSpeakerVolumeDirty(true),
+	mSpeakerMuteDirty(true),
+	mMicVolume(0),
+	mMicVolumeDirty(true),
+	
+	mVoiceEnabled(false),
+	mWriteInProgress(false),
+	
+	mLipSyncEnabled(false)
+{	
+	gVoiceClient = this;
+	
+	mAPIVersion = LLTrans::getString("NotConnected");
+
+	mSpeakerVolume = scale_speaker_volume(0);
+	
+#if LL_DARWIN || LL_LINUX || LL_SOLARIS
+		// HACK: THIS DOES NOT BELONG HERE
+		// When the vivox daemon dies, the next write attempt on our socket generates a SIGPIPE, which kills us.
+		// This should cause us to ignore SIGPIPE and handle the error through proper channels.
+		// This should really be set up elsewhere.  Where should it go?
+		signal(SIGPIPE, SIG_IGN);
+		
+		// Since we're now launching the gateway with fork/exec instead of system(), we need to deal with zombie processes.
+		// Ignoring SIGCHLD should prevent zombies from being created.  Alternately, we could use wait(), but I'd rather not do that.
+		signal(SIGCHLD, SIG_IGN);
+#endif
+
+	// set up state machine
+	setState(stateDisabled);
+	
+	gIdleCallbacks.addFunction(idle, this);
 }
 
 //---------------------------------------------------
-// Basic setup/shutdown
 
 LLVoiceClient::~LLVoiceClient()
 {
 }
 
+//----------------------------------------------
+
 void LLVoiceClient::init(LLPumpIO *pump)
 {
-	// Initialize all of the voice modules
-	m_servicePump = pump;
+	// constructor will set up gVoiceClient
+	LLVoiceClient::getInstance()->mPump = pump;
+	LLVoiceClient::getInstance()->updateSettings();
 }
 
-void LLVoiceClient::userAuthorized(const std::string& user_id, const LLUUID &agentID)
+void LLVoiceClient::terminate()
 {
-	// In the future, we should change this to allow voice module registration
-	// with a table lookup of sorts.
-	std::string voice_server = gSavedSettings.getString("VoiceServerType");
-	LL_DEBUGS("Voice") << "voice server type " << voice_server << LL_ENDL;
-	if(voice_server == "diamondware")
+	if(gVoiceClient)
 	{
-		mVoiceModule = (LLVoiceModuleInterface *)LLDiamondwareVoiceClient::getInstance();
+//		gVoiceClient->leaveAudioSession();
+		gVoiceClient->logout();
+		// As of SDK version 4885, this should no longer be necessary.  It will linger after the socket close if it needs to.
+		// ms_sleep(2000);
+		gVoiceClient->connectorShutdown();
+		gVoiceClient->closeSocket();		// Need to do this now -- bad things happen if the destructor does it later.
+		
+		// This will do unpleasant things on windows.
+//		killGateway();
+		
+		// Don't do this anymore -- LLSingleton will take care of deleting the object.		
+//		delete gVoiceClient;
+		
+		// Hint to other code not to access the voice client anymore.
+		gVoiceClient = NULL;
+	}
+}
+
+//---------------------------------------------------
+
+void LLVoiceClient::updateSettings()
+{
+	setVoiceEnabled(gSavedSettings.getBOOL("EnableVoiceChat"));
+	setUsePTT(gSavedSettings.getBOOL("PTTCurrentlyEnabled"));
+	std::string keyString = gSavedSettings.getString("PushToTalkButton");
+	setPTTKey(keyString);
+	setPTTIsToggle(gSavedSettings.getBOOL("PushToTalkToggle"));
+	setEarLocation(gSavedSettings.getS32("VoiceEarLocation"));
+
+	std::string inputDevice = gSavedSettings.getString("VoiceInputAudioDevice");
+	setCaptureDevice(inputDevice);
+	std::string outputDevice = gSavedSettings.getString("VoiceOutputAudioDevice");
+	setRenderDevice(outputDevice);
+	F32 mic_level = gSavedSettings.getF32("AudioLevelMic");
+	setMicGain(mic_level);
+	setLipSyncEnabled(gSavedSettings.getBOOL("LipSyncEnabled"));
+}
+
+/////////////////////////////
+// utility functions
+
+bool LLVoiceClient::writeString(const std::string &str)
+{
+	bool result = false;
+	if(mConnected)
+	{
+		apr_status_t err;
+		apr_size_t size = (apr_size_t)str.size();
+		apr_size_t written = size;
+	
+		//MARK: Turn this on to log outgoing XML
+//		LL_DEBUGS("Voice") << "sending: " << str << LL_ENDL;
+
+		// check return code - sockets will fail (broken, etc.)
+		err = apr_socket_send(
+				mSocket->getSocket(),
+				(const char*)str.data(),
+				&written);
+		
+		if(err == 0)
+		{
+			// Success.
+			result = true;
+		}
+		// TODO: handle partial writes (written is number of bytes written)
+		// Need to set socket to non-blocking before this will work.
+//		else if(APR_STATUS_IS_EAGAIN(err))
+//		{
+//			// 
+//		}
+		else
+		{
+			// Assume any socket error means something bad.  For now, just close the socket.
+			char buf[MAX_STRING];
+			LL_WARNS("Voice") << "apr error " << err << " ("<< apr_strerror(err, buf, MAX_STRING) << ") sending data to vivox daemon." << LL_ENDL;
+			daemonDied();
+		}
+	}
+		
+	return result;
+}
+
+
+/////////////////////////////
+// session control messages
+void LLVoiceClient::connectorCreate()
+{
+	std::ostringstream stream;
+	std::string logpath = gDirUtilp->getExpandedFilename(LL_PATH_LOGS, "");
+	std::string loglevel = "0";
+	
+	// Transition to stateConnectorStarted when the connector handle comes back.
+	setState(stateConnectorStarting);
+
+	std::string savedLogLevel = gSavedSettings.getString("VivoxDebugLevel");
+		
+	if(savedLogLevel != "-1")
+	{
+		LL_DEBUGS("Voice") << "creating connector with logging enabled" << LL_ENDL;
+		loglevel = "10";
+	}
+	
+	stream 
+	<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Connector.Create.1\">"
+		<< "<ClientName>V2 SDK</ClientName>"
+		<< "<AccountManagementServer>" << mVoiceAccountServerURI << "</AccountManagementServer>"
+		<< "<Mode>Normal</Mode>"
+		<< "<Logging>"
+			<< "<Folder>" << logpath << "</Folder>"
+			<< "<FileNamePrefix>Connector</FileNamePrefix>"
+			<< "<FileNameSuffix>.log</FileNameSuffix>"
+			<< "<LogLevel>" << loglevel << "</LogLevel>"
+		<< "</Logging>"
+		<< "<Application>SecondLifeViewer.1</Application>"
+	<< "</Request>\n\n\n";
+	
+	writeString(stream.str());
+}
+
+void LLVoiceClient::connectorShutdown()
+{
+	setState(stateConnectorStopping);
+	
+	if(!mConnectorHandle.empty())
+	{
+		std::ostringstream stream;
+		stream
+		<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Connector.InitiateShutdown.1\">"
+			<< "<ConnectorHandle>" << mConnectorHandle << "</ConnectorHandle>"
+		<< "</Request>"
+		<< "\n\n\n";
+		
+		mConnectorHandle.clear();
+		
+		writeString(stream.str());
+	}
+}
+
+void LLVoiceClient::userAuthorized(const std::string& firstName, const std::string& lastName, const LLUUID &agentID)
+{
+	mAccountFirstName = firstName;
+	mAccountLastName = lastName;
+
+	mAccountDisplayName = firstName;
+	mAccountDisplayName += " ";
+	mAccountDisplayName += lastName;
+
+	LL_INFOS("Voice") << "name \"" << mAccountDisplayName << "\" , ID " << agentID << LL_ENDL;
+
+	sConnectingToAgni = LLViewerLogin::getInstance()->isInProductionGrid();
+
+	mAccountName = nameFromID(agentID);
+}
+
+void LLVoiceClient::requestVoiceAccountProvision(S32 retries)
+{
+	if ( gAgent.getRegion() && mVoiceEnabled )
+	{
+		std::string url = 
+			gAgent.getRegion()->getCapability(
+				"ProvisionVoiceAccountRequest");
+
+		if ( url == "" ) return;
+
+		LLHTTPClient::post(
+			url,
+			LLSD(),
+			new LLViewerVoiceAccountProvisionResponder(retries));
 	}
-	else if(voice_server == "vivox")
+}
+
+void LLVoiceClient::login(
+	const std::string& account_name,
+	const std::string& password,
+	const std::string& voice_sip_uri_hostname,
+	const std::string& voice_account_server_uri)
+{
+	mVoiceSIPURIHostName = voice_sip_uri_hostname;
+	mVoiceAccountServerURI = voice_account_server_uri;
+
+	if(!mAccountHandle.empty())
 	{
-		mVoiceModule = (LLVoiceModuleInterface *)LLVivoxVoiceClient::getInstance();
+		// Already logged in.
+		LL_WARNS("Voice") << "Called while already logged in." << LL_ENDL;
+		
+		// Don't process another login.
+		return;
+	}
+	else if ( account_name != mAccountName )
+	{
+		//TODO: error?
+		LL_WARNS("Voice") << "Wrong account name! " << account_name
+				<< " instead of " << mAccountName << LL_ENDL;
 	}
 	else
 	{
-		mVoiceModule = NULL;
-		return; 
+		mAccountPassword = password;
+	}
+
+	std::string debugSIPURIHostName = gSavedSettings.getString("VivoxDebugSIPURIHostName");
+	
+	if( !debugSIPURIHostName.empty() )
+	{
+		mVoiceSIPURIHostName = debugSIPURIHostName;
+	}
+	
+	if( mVoiceSIPURIHostName.empty() )
+	{
+		// we have an empty account server name
+		// so we fall back to hardcoded defaults
+
+		if(sConnectingToAgni)
+		{
+			// Use the release account server
+			mVoiceSIPURIHostName = "bhr.vivox.com";
+		}
+		else
+		{
+			// Use the development account server
+			mVoiceSIPURIHostName = "bhd.vivox.com";
+		}
+	}
+	
+	std::string debugAccountServerURI = gSavedSettings.getString("VivoxDebugVoiceAccountServerURI");
+
+	if( !debugAccountServerURI.empty() )
+	{
+		mVoiceAccountServerURI = debugAccountServerURI;
+	}
+	
+	if( mVoiceAccountServerURI.empty() )
+	{
+		// If the account server URI isn't specified, construct it from the SIP URI hostname
+		mVoiceAccountServerURI = "https://www." + mVoiceSIPURIHostName + "/api2/";		
 	}
-	mVoiceModule->init(m_servicePump);	
-	mVoiceModule->userAuthorized(user_id, agentID);
 }
 
+void LLVoiceClient::idle(void* user_data)
+{
+	LLVoiceClient* self = (LLVoiceClient*)user_data;
+	self->stateMachine();
+}
 
-void LLVoiceClient::terminate()
+std::string LLVoiceClient::state2string(LLVoiceClient::state inState)
 {
-	if (mVoiceModule) mVoiceModule->terminate();
-	mVoiceModule = NULL;
+	std::string result = "UNKNOWN";
+	
+		// Prevent copy-paste errors when updating this list...
+#define CASE(x)  case x:  result = #x;  break
+
+	switch(inState)
+	{
+		CASE(stateDisableCleanup);
+		CASE(stateDisabled);
+		CASE(stateStart);
+		CASE(stateDaemonLaunched);
+		CASE(stateConnecting);
+		CASE(stateConnected);
+		CASE(stateIdle);
+		CASE(stateMicTuningStart);
+		CASE(stateMicTuningRunning);
+		CASE(stateMicTuningStop);
+		CASE(stateConnectorStart);
+		CASE(stateConnectorStarting);
+		CASE(stateConnectorStarted);
+		CASE(stateLoginRetry);
+		CASE(stateLoginRetryWait);
+		CASE(stateNeedsLogin);
+		CASE(stateLoggingIn);
+		CASE(stateLoggedIn);
+		CASE(stateCreatingSessionGroup);
+		CASE(stateNoChannel);
+		CASE(stateJoiningSession);
+		CASE(stateSessionJoined);
+		CASE(stateRunning);
+		CASE(stateLeavingSession);
+		CASE(stateSessionTerminated);
+		CASE(stateLoggingOut);
+		CASE(stateLoggedOut);
+		CASE(stateConnectorStopping);
+		CASE(stateConnectorStopped);
+		CASE(stateConnectorFailed);
+		CASE(stateConnectorFailedWaiting);
+		CASE(stateLoginFailed);
+		CASE(stateLoginFailedWaiting);
+		CASE(stateJoinSessionFailed);
+		CASE(stateJoinSessionFailedWaiting);
+		CASE(stateJail);
+	}
+
+#undef CASE
+	
+	return result;
 }
 
-const LLVoiceVersionInfo LLVoiceClient::getVersion()
+std::string LLVoiceClientStatusObserver::status2string(LLVoiceClientStatusObserver::EStatusType inStatus)
 {
-	if (mVoiceModule) 
+	std::string result = "UNKNOWN";
+	
+		// Prevent copy-paste errors when updating this list...
+#define CASE(x)  case x:  result = #x;  break
+
+	switch(inStatus)
 	{
-		return mVoiceModule->getVersion();
+		CASE(STATUS_LOGIN_RETRY);
+		CASE(STATUS_LOGGED_IN);
+		CASE(STATUS_JOINING);
+		CASE(STATUS_JOINED);
+		CASE(STATUS_LEFT_CHANNEL);
+		CASE(STATUS_VOICE_DISABLED);
+		CASE(STATUS_VOICE_ENABLED);
+		CASE(BEGIN_ERROR_STATUS);
+		CASE(ERROR_CHANNEL_FULL);
+		CASE(ERROR_CHANNEL_LOCKED);
+		CASE(ERROR_NOT_AVAILABLE);
+		CASE(ERROR_UNKNOWN);
+	default:
+		break;
+	}
+
+#undef CASE
+	
+	return result;
+}
+
+void LLVoiceClient::setState(state inState)
+{
+	LL_DEBUGS("Voice") << "entering state " << state2string(inState) << LL_ENDL;
+	
+	mState = inState;
+}
+
+void LLVoiceClient::stateMachine()
+{
+	if(gDisconnected)
+	{
+		// The viewer has been disconnected from the sim.  Disable voice.
+		setVoiceEnabled(false);
+	}
+	
+	if(mVoiceEnabled)
+	{
+		updatePosition();
+	}
+	else if(mTuningMode)
+	{
+		// Tuning mode is special -- it needs to launch SLVoice even if voice is disabled.
 	}
 	else
 	{
-		LLVoiceVersionInfo result;
-		result.serverVersion = std::string();
-		result.serverType = std::string();
-		return result;
+		if((getState() != stateDisabled) && (getState() != stateDisableCleanup))
+		{
+			// User turned off voice support.  Send the cleanup messages, close the socket, and reset.
+			if(!mConnected)
+			{
+				// if voice was turned off after the daemon was launched but before we could connect to it, we may need to issue a kill.
+				LL_INFOS("Voice") << "Disabling voice before connection to daemon, terminating." << LL_ENDL;
+				killGateway();
+			}
+			
+			logout();
+			connectorShutdown();
+			
+			setState(stateDisableCleanup);
+		}
+	}
+	
+	// Check for parcel boundary crossing
+	{
+		LLViewerRegion *region = gAgent.getRegion();
+		LLParcel *parcel = LLViewerParcelMgr::getInstance()->getAgentParcel();
+		
+		if(region && parcel)
+		{
+			S32 parcelLocalID = parcel->getLocalID();
+			std::string regionName = region->getName();
+			std::string capURI = region->getCapability("ParcelVoiceInfoRequest");
+		
+//			LL_DEBUGS("Voice") << "Region name = \"" << regionName << "\", parcel local ID = " << parcelLocalID << ", cap URI = \"" << capURI << "\"" << LL_ENDL;
+
+			// The region name starts out empty and gets filled in later.  
+			// Also, the cap gets filled in a short time after the region cross, but a little too late for our purposes.
+			// If either is empty, wait for the next time around.
+			if(!regionName.empty())
+			{
+				if(!capURI.empty())
+				{
+					if((parcelLocalID != mCurrentParcelLocalID) || (regionName != mCurrentRegionName))
+					{
+						// We have changed parcels.  Initiate a parcel channel lookup.
+						mCurrentParcelLocalID = parcelLocalID;
+						mCurrentRegionName = regionName;
+						
+						parcelChanged();
+					}
+				}
+				else
+				{
+					LL_WARNS_ONCE("Voice") << "region doesn't have ParcelVoiceInfoRequest capability.  This is normal for a short time after teleporting, but bad if it persists for very long." << LL_ENDL;
+				}
+			}
+		}
+	}
+
+	switch(getState())
+	{
+		//MARK: stateDisableCleanup
+		case stateDisableCleanup:
+			// Clean up and reset everything. 
+			closeSocket();
+			deleteAllSessions();
+			deleteAllBuddies();		
+			
+			mConnectorHandle.clear();
+			mAccountHandle.clear();
+			mAccountPassword.clear();
+			mVoiceAccountServerURI.clear();
+			
+			setState(stateDisabled);	
+		break;
+		
+		//MARK: stateDisabled
+		case stateDisabled:
+			if(mTuningMode || (mVoiceEnabled && !mAccountName.empty()))
+			{
+				setState(stateStart);
+			}
+		break;
+		
+		//MARK: stateStart
+		case stateStart:
+			if(gSavedSettings.getBOOL("CmdLineDisableVoice"))
+			{
+				// Voice is locked out, we must not launch the vivox daemon.
+				setState(stateJail);
+			}
+			else if(!isGatewayRunning())
+			{
+				if(true)
+				{
+					// Launch the voice daemon
+					
+					// *FIX:Mani - Using the executable dir instead 
+					// of mAppRODataDir, the working directory from which the app
+					// is launched.
+					//std::string exe_path = gDirUtilp->getAppRODataDir();
+					std::string exe_path = gDirUtilp->getExecutableDir();
+					exe_path += gDirUtilp->getDirDelimiter();
+#if LL_WINDOWS
+					exe_path += "SLVoice.exe";
+#elif LL_DARWIN
+					exe_path += "../Resources/SLVoice";
+#else
+					exe_path += "SLVoice";
+#endif
+					// See if the vivox executable exists
+					llstat s;
+					if(!LLFile::stat(exe_path, &s))
+					{
+						// vivox executable exists.  Build the command line and launch the daemon.
+						// SLIM SDK: these arguments are no longer necessary.
+//						std::string args = " -p tcp -h -c";
+						std::string args;
+						std::string loglevel = gSavedSettings.getString("VivoxDebugLevel");
+						
+						if(loglevel.empty())
+						{
+							loglevel = "-1";	// turn logging off completely
+						}
+						
+						args += " -ll ";
+						args += loglevel;
+						
+						LL_DEBUGS("Voice") << "Args for SLVoice: " << args << LL_ENDL;
+
+#if LL_WINDOWS
+						PROCESS_INFORMATION pinfo;
+						STARTUPINFOW sinfo;
+						memset(&sinfo, 0, sizeof(sinfo));
+
+						std::string exe_dir = gDirUtilp->getExecutableDir();
+
+						llutf16string exe_path16 = utf8str_to_utf16str(exe_path);
+						llutf16string exe_dir16 = utf8str_to_utf16str(exe_dir);
+						llutf16string args16 = utf8str_to_utf16str(args);
+						// Create a writeable copy to keep Windows happy.
+						U16 *argscpy_16 = new U16[args16.size() + 1];
+						wcscpy_s(argscpy_16,args16.size()+1,args16.c_str());
+						if(!CreateProcessW(exe_path16.c_str(), argscpy_16, NULL, NULL, FALSE, 0, NULL, exe_dir16.c_str(), &sinfo, &pinfo))
+						{
+//							DWORD dwErr = GetLastError();
+						}
+						else
+						{
+							// foo = pinfo.dwProcessId; // get your pid here if you want to use it later on
+							// CloseHandle(pinfo.hProcess); // stops leaks - nothing else
+							sGatewayHandle = pinfo.hProcess;
+							CloseHandle(pinfo.hThread); // stops leaks - nothing else
+						}		
+						
+						delete[] argscpy_16;
+#else	// LL_WINDOWS
+						// This should be the same for mac and linux
+						{
+							std::vector<std::string> arglist;
+							arglist.push_back(exe_path);
+							
+							// Split the argument string into separate strings for each argument
+							typedef boost::tokenizer<boost::char_separator<char> > tokenizer;
+							boost::char_separator<char> sep(" ");
+							tokenizer tokens(args, sep);
+							tokenizer::iterator token_iter;
+
+							for(token_iter = tokens.begin(); token_iter != tokens.end(); ++token_iter)
+							{
+								arglist.push_back(*token_iter);
+							}
+							
+							// create an argv vector for the child process
+							char **fakeargv = new char*[arglist.size() + 1];
+							int i;
+							for(i=0; i < arglist.size(); i++)
+								fakeargv[i] = const_cast<char*>(arglist[i].c_str());
+
+							fakeargv[i] = NULL;
+							
+							fflush(NULL); // flush all buffers before the child inherits them
+							pid_t id = vfork();
+							if(id == 0)
+							{
+								// child
+								execv(exe_path.c_str(), fakeargv);
+								
+								// If we reach this point, the exec failed.
+								// Use _exit() instead of exit() per the vfork man page.
+								_exit(0);
+							}
+
+							// parent
+							delete[] fakeargv;
+							sGatewayPID = id;
+						}
+#endif	// LL_WINDOWS
+						mDaemonHost = LLHost(gSavedSettings.getString("VoiceHost").c_str(), gSavedSettings.getU32("VoicePort"));
+					}	
+					else
+					{
+						LL_INFOS("Voice") << exe_path << " not found." << LL_ENDL;
+					}	
+				}
+				else
+				{		
+					// SLIM SDK: port changed from 44124 to 44125.
+					// We can connect to a client gateway running on another host.  This is useful for testing.
+					// To do this, launch the gateway on a nearby host like this:
+					//  vivox-gw.exe -p tcp -i 0.0.0.0:44125
+					// and put that host's IP address here.
+					mDaemonHost = LLHost(gSavedSettings.getString("VoiceHost"), gSavedSettings.getU32("VoicePort"));
+				}
+
+				mUpdateTimer.start();
+				mUpdateTimer.setTimerExpirySec(CONNECT_THROTTLE_SECONDS);
+
+				setState(stateDaemonLaunched);
+				
+				// Dirty the states we'll need to sync with the daemon when it comes up.
+				mPTTDirty = true;
+				mMicVolumeDirty = true;
+				mSpeakerVolumeDirty = true;
+				mSpeakerMuteDirty = true;
+				// These only need to be set if they're not default (i.e. empty string).
+				mCaptureDeviceDirty = !mCaptureDevice.empty();
+				mRenderDeviceDirty = !mRenderDevice.empty();
+				
+				mMainSessionGroupHandle.clear();
+			}
+		break;
+
+		//MARK: stateDaemonLaunched
+		case stateDaemonLaunched:
+			if(mUpdateTimer.hasExpired())
+			{
+				LL_DEBUGS("Voice") << "Connecting to vivox daemon" << LL_ENDL;
+
+				mUpdateTimer.setTimerExpirySec(CONNECT_THROTTLE_SECONDS);
+
+				if(!mSocket)
+				{
+					mSocket = LLSocket::create(gAPRPoolp, LLSocket::STREAM_TCP);	
+				}
+				
+				mConnected = mSocket->blockingConnect(mDaemonHost);
+				if(mConnected)
+				{
+					setState(stateConnecting);
+				}
+				else
+				{
+					// If the connect failed, the socket may have been put into a bad state.  Delete it.
+					closeSocket();
+				}
+			}
+		break;
+
+		//MARK: stateConnecting
+		case stateConnecting:
+		// Can't do this until we have the pump available.
+		if(mPump)
+		{
+			// MBW -- Note to self: pumps and pipes examples in
+			//  indra/test/io.cpp
+			//  indra/test/llpipeutil.{cpp|h}
+
+			// Attach the pumps and pipes
+				
+			LLPumpIO::chain_t readChain;
+
+			readChain.push_back(LLIOPipe::ptr_t(new LLIOSocketReader(mSocket)));
+			readChain.push_back(LLIOPipe::ptr_t(new LLVivoxProtocolParser()));
+
+			mPump->addChain(readChain, NEVER_CHAIN_EXPIRY_SECS);
+
+			setState(stateConnected);
+		}
+
+		break;
+		
+		//MARK: stateConnected
+		case stateConnected:
+			// Initial devices query
+			getCaptureDevicesSendMessage();
+			getRenderDevicesSendMessage();
+
+			mLoginRetryCount = 0;
+
+			setState(stateIdle);
+		break;
+
+		//MARK: stateIdle
+		case stateIdle:
+			// This is the idle state where we're connected to the daemon but haven't set up a connector yet.
+			if(mTuningMode)
+			{
+				mTuningExitState = stateIdle;
+				setState(stateMicTuningStart);
+			}
+			else if(!mVoiceEnabled)
+			{
+				// We never started up the connector.  This will shut down the daemon.
+				setState(stateConnectorStopped);
+			}
+			else if(!mAccountName.empty())
+			{
+				LLViewerRegion *region = gAgent.getRegion();
+				
+				if(region)
+				{
+					if ( region->getCapability("ProvisionVoiceAccountRequest") != "" )
+					{
+						if ( mAccountPassword.empty() )
+						{
+							requestVoiceAccountProvision();
+						}
+						setState(stateConnectorStart);
+					}
+					else
+					{
+						LL_WARNS_ONCE("Voice") << "region doesn't have ProvisionVoiceAccountRequest capability!" << LL_ENDL;
+					}
+				}
+			}
+		break;
+
+		//MARK: stateMicTuningStart
+		case stateMicTuningStart:
+			if(mUpdateTimer.hasExpired())
+			{
+				if(mCaptureDeviceDirty || mRenderDeviceDirty)
+				{
+					// These can't be changed while in tuning mode.  Set them before starting.
+					std::ostringstream stream;
+					
+					buildSetCaptureDevice(stream);
+					buildSetRenderDevice(stream);
+
+					if(!stream.str().empty())
+					{
+						writeString(stream.str());
+					}				
+
+					// This will come around again in the same state and start the capture, after the timer expires.
+					mUpdateTimer.start();
+					mUpdateTimer.setTimerExpirySec(UPDATE_THROTTLE_SECONDS);
+				}
+				else
+				{
+					// duration parameter is currently unused, per Mike S.
+					tuningCaptureStartSendMessage(10000);
+
+					setState(stateMicTuningRunning);
+				}
+			}
+			
+		break;
+		
+		//MARK: stateMicTuningRunning
+		case stateMicTuningRunning:
+			if(!mTuningMode || mCaptureDeviceDirty || mRenderDeviceDirty)
+			{
+				// All of these conditions make us leave tuning mode.
+				setState(stateMicTuningStop);
+			}
+			else
+			{
+				// process mic/speaker volume changes
+				if(mTuningMicVolumeDirty || mTuningSpeakerVolumeDirty)
+				{
+					std::ostringstream stream;
+					
+					if(mTuningMicVolumeDirty)
+					{
+						LL_INFOS("Voice") << "setting tuning mic level to " << mTuningMicVolume << LL_ENDL;
+						stream
+						<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Aux.SetMicLevel.1\">"
+						<< "<Level>" << mTuningMicVolume << "</Level>"
+						<< "</Request>\n\n\n";
+					}
+					
+					if(mTuningSpeakerVolumeDirty)
+					{
+						stream
+						<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Aux.SetSpeakerLevel.1\">"
+						<< "<Level>" << mTuningSpeakerVolume << "</Level>"
+						<< "</Request>\n\n\n";
+					}
+					
+					mTuningMicVolumeDirty = false;
+					mTuningSpeakerVolumeDirty = false;
+
+					if(!stream.str().empty())
+					{
+						writeString(stream.str());
+					}
+				}
+			}
+		break;
+		
+		//MARK: stateMicTuningStop
+		case stateMicTuningStop:
+		{
+			// transition out of mic tuning
+			tuningCaptureStopSendMessage();
+			
+			setState(mTuningExitState);
+			
+			// if we exited just to change devices, this will keep us from re-entering too fast.
+			mUpdateTimer.start();
+			mUpdateTimer.setTimerExpirySec(UPDATE_THROTTLE_SECONDS);
+			
+		}
+		break;
+												
+		//MARK: stateConnectorStart
+		case stateConnectorStart:
+			if(!mVoiceEnabled)
+			{
+				// We were never logged in.  This will shut down the connector.
+				setState(stateLoggedOut);
+			}
+			else if(!mVoiceAccountServerURI.empty())
+			{
+				connectorCreate();
+			}
+		break;
+		
+		//MARK: stateConnectorStarting
+		case stateConnectorStarting:	// waiting for connector handle
+			// connectorCreateResponse() will transition from here to stateConnectorStarted.
+		break;
+		
+		//MARK: stateConnectorStarted
+		case stateConnectorStarted:		// connector handle received
+			if(!mVoiceEnabled)
+			{
+				// We were never logged in.  This will shut down the connector.
+				setState(stateLoggedOut);
+			}
+			else
+			{
+				// The connector is started.  Send a login message.
+				setState(stateNeedsLogin);
+			}
+		break;
+				
+		//MARK: stateLoginRetry
+		case stateLoginRetry:
+			if(mLoginRetryCount == 0)
+			{
+				// First retry -- display a message to the user
+				notifyStatusObservers(LLVoiceClientStatusObserver::STATUS_LOGIN_RETRY);
+			}
+			
+			mLoginRetryCount++;
+			
+			if(mLoginRetryCount > MAX_LOGIN_RETRIES)
+			{
+				LL_WARNS("Voice") << "too many login retries, giving up." << LL_ENDL;
+				setState(stateLoginFailed);
+			}
+			else
+			{
+				LL_INFOS("Voice") << "will retry login in " << LOGIN_RETRY_SECONDS << " seconds." << LL_ENDL;
+				mUpdateTimer.start();
+				mUpdateTimer.setTimerExpirySec(LOGIN_RETRY_SECONDS);
+				setState(stateLoginRetryWait);
+			}
+		break;
+		
+		//MARK: stateLoginRetryWait
+		case stateLoginRetryWait:
+			if(mUpdateTimer.hasExpired())
+			{
+				setState(stateNeedsLogin);
+			}
+		break;
+		
+		//MARK: stateNeedsLogin
+		case stateNeedsLogin:
+			if(!mAccountPassword.empty())
+			{
+				setState(stateLoggingIn);
+				loginSendMessage();
+			}		
+		break;
+		
+		//MARK: stateLoggingIn
+		case stateLoggingIn:			// waiting for account handle
+			// loginResponse() will transition from here to stateLoggedIn.
+		break;
+		
+		//MARK: stateLoggedIn
+		case stateLoggedIn:				// account handle received
+
+			notifyStatusObservers(LLVoiceClientStatusObserver::STATUS_LOGGED_IN);
+
+			// request the current set of block rules (we'll need them when updating the friends list)
+			accountListBlockRulesSendMessage();
+			
+			// request the current set of auto-accept rules
+			accountListAutoAcceptRulesSendMessage();
+			
+			// Set up the mute list observer if it hasn't been set up already.
+			if((!sMuteListListener_listening))
+			{
+				LLMuteList::getInstance()->addObserver(&mutelist_listener);
+				sMuteListListener_listening = true;
+			}
+
+			// Set up the friends list observer if it hasn't been set up already.
+			if(friendslist_listener == NULL)
+			{
+				friendslist_listener = new LLVoiceClientFriendsObserver;
+				LLAvatarTracker::instance().addObserver(friendslist_listener);
+			}
+			
+			// Set the initial state of mic mute, local speaker volume, etc.
+			{
+				std::ostringstream stream;
+				
+				buildLocalAudioUpdates(stream);
+				
+				if(!stream.str().empty())
+				{
+					writeString(stream.str());
+				}
+			}
+			
+#if USE_SESSION_GROUPS			
+			// create the main session group
+			sessionGroupCreateSendMessage();
+			
+			setState(stateCreatingSessionGroup);
+#else
+			// Not using session groups -- skip the stateCreatingSessionGroup state.
+			setState(stateNoChannel);
+
+			// Initial kick-off of channel lookup logic
+			parcelChanged();		
+#endif
+		break;
+		
+		//MARK: stateCreatingSessionGroup
+		case stateCreatingSessionGroup:
+			if(mSessionTerminateRequested || !mVoiceEnabled)
+			{
+				// TODO: Question: is this the right way out of this state
+				setState(stateSessionTerminated);
+			}
+			else if(!mMainSessionGroupHandle.empty())
+			{
+				setState(stateNoChannel);
+				
+				// Start looped recording (needed for "panic button" anti-griefing tool)
+				recordingLoopStart();
+
+				// Initial kick-off of channel lookup logic
+				parcelChanged();		
+			}
+		break;
+					
+		//MARK: stateNoChannel
+		case stateNoChannel:
+			
+			mSpatialJoiningNum = 0;
+			// Do this here as well as inside sendPositionalUpdate().  
+			// Otherwise, if you log in but don't join a proximal channel (such as when your login location has voice disabled), your friends list won't sync.
+			sendFriendsListUpdates();
+			
+			if(mSessionTerminateRequested || !mVoiceEnabled)
+			{
+				// TODO: Question: Is this the right way out of this state?
+				setState(stateSessionTerminated);
+			}
+			else if(mTuningMode)
+			{
+				mTuningExitState = stateNoChannel;
+				setState(stateMicTuningStart);
+			}
+			else if(sessionNeedsRelog(mNextAudioSession))
+			{
+				requestRelog();
+				setState(stateSessionTerminated);
+			}
+			else if(mNextAudioSession)
+			{				
+				sessionState *oldSession = mAudioSession;
+
+				mAudioSession = mNextAudioSession;
+				if(!mAudioSession->mReconnect)	
+				{
+					mNextAudioSession = NULL;
+				}
+				
+				// The old session may now need to be deleted.
+				reapSession(oldSession);
+				
+				if(!mAudioSession->mHandle.empty())
+				{
+					// Connect to a session by session handle
+
+					sessionMediaConnectSendMessage(mAudioSession);
+				}
+				else
+				{
+					// Connect to a session by URI
+					sessionCreateSendMessage(mAudioSession, true, false);
+				}
+
+				notifyStatusObservers(LLVoiceClientStatusObserver::STATUS_JOINING);
+				setState(stateJoiningSession);
+			}
+			else if(!mSpatialSessionURI.empty())
+			{
+				// If we're not headed elsewhere and have a spatial URI, return to spatial.
+				switchChannel(mSpatialSessionURI, true, false, false, mSpatialSessionCredentials);
+			}
+		break;
+
+		//MARK: stateJoiningSession
+		case stateJoiningSession:		// waiting for session handle
+
+			// If this is true we have problem with connection to voice server (EXT-4313).
+			// See descriptions of mSpatialJoiningNum and MAX_NORMAL_JOINING_SPATIAL_NUM.
+			if(mSpatialJoiningNum == MAX_NORMAL_JOINING_SPATIAL_NUM) 
+			{
+				// Notify observers to let them know there is problem with voice
+				notifyStatusObservers(LLVoiceClientStatusObserver::STATUS_VOICE_DISABLED);
+				llwarns << "There seems to be problem with connection to voice server. Disabling voice chat abilities." << llendl;
+			}
+
+			// Increase mSpatialJoiningNum only for spatial sessions- it's normal to reach this case for
+			// example for p2p many times while waiting for response, so it can't be used to detect errors
+			if(mAudioSession && mAudioSession->mIsSpatial)
+			{
+				mSpatialJoiningNum++;
+			}
+			
+			// joinedAudioSession() will transition from here to stateSessionJoined.
+			if(!mVoiceEnabled)
+			{
+				// User bailed out during connect -- jump straight to teardown.
+				setState(stateSessionTerminated);
+			}
+			else if(mSessionTerminateRequested)
+			{
+				if(mAudioSession && !mAudioSession->mHandle.empty())
+				{
+					// Only allow direct exits from this state in p2p calls (for cancelling an invite).
+					// Terminating a half-connected session on other types of calls seems to break something in the vivox gateway.
+					if(mAudioSession->mIsP2P)
+					{
+						sessionMediaDisconnectSendMessage(mAudioSession);
+						setState(stateSessionTerminated);
+					}
+				}
+			}
+		break;
+		
+		//MARK: stateSessionJoined
+		case stateSessionJoined:		// session handle received
+			
+			mSpatialJoiningNum = 0;
+			// It appears that I need to wait for BOTH the SessionGroup.AddSession response and the SessionStateChangeEvent with state 4
+			// before continuing from this state.  They can happen in either order, and if I don't wait for both, things can get stuck.
+			// For now, the SessionGroup.AddSession response handler sets mSessionHandle and the SessionStateChangeEvent handler transitions to stateSessionJoined.
+			// This is a cheap way to make sure both have happened before proceeding.
+			if(mAudioSession && mAudioSession->mVoiceEnabled)
+			{
+				// Dirty state that may need to be sync'ed with the daemon.
+				mPTTDirty = true;
+				mSpeakerVolumeDirty = true;
+				mSpatialCoordsDirty = true;
+				
+				setState(stateRunning);
+				
+				// Start the throttle timer
+				mUpdateTimer.start();
+				mUpdateTimer.setTimerExpirySec(UPDATE_THROTTLE_SECONDS);
+
+				// Events that need to happen when a session is joined could go here.
+				// Maybe send initial spatial data?
+				notifyStatusObservers(LLVoiceClientStatusObserver::STATUS_JOINED);
+
+			}
+			else if(!mVoiceEnabled)
+			{
+				// User bailed out during connect -- jump straight to teardown.
+				setState(stateSessionTerminated);
+			}
+			else if(mSessionTerminateRequested)
+			{
+				// Only allow direct exits from this state in p2p calls (for cancelling an invite).
+				// Terminating a half-connected session on other types of calls seems to break something in the vivox gateway.
+				if(mAudioSession && mAudioSession->mIsP2P)
+				{
+					sessionMediaDisconnectSendMessage(mAudioSession);
+					setState(stateSessionTerminated);
+				}
+			}
+		break;
+		
+		//MARK: stateRunning
+		case stateRunning:				// steady state
+			// Disabling voice or disconnect requested.
+			if(!mVoiceEnabled || mSessionTerminateRequested)
+			{
+				leaveAudioSession();
+			}
+			else
+			{
+				
+				// Figure out whether the PTT state needs to change
+				{
+					bool newPTT;
+					if(mUsePTT)
+					{
+						// If configured to use PTT, track the user state.
+						newPTT = mUserPTTState;
+					}
+					else
+					{
+						// If not configured to use PTT, it should always be true (otherwise the user will be unable to speak).
+						newPTT = true;
+					}
+					
+					if(mMuteMic)
+					{
+						// This always overrides any other PTT setting.
+						newPTT = false;
+					}
+					
+					// Dirty if state changed.
+					if(newPTT != mPTT)
+					{
+						mPTT = newPTT;
+						mPTTDirty = true;
+					}
+				}
+				
+				if(!inSpatialChannel())
+				{
+					// When in a non-spatial channel, never send positional updates.
+					mSpatialCoordsDirty = false;
+				}
+				else
+				{
+					// Do the calculation that enforces the listener<->speaker tether (and also updates the real camera position)
+					enforceTether();
+				}
+				
+				// Send an update only if the ptt or mute state has changed (which shouldn't be able to happen that often
+				// -- the user can only click so fast) or every 10hz, whichever is sooner.
+				// Sending for every volume update causes an excessive flood of messages whenever a volume slider is dragged.
+				if((mAudioSession && mAudioSession->mMuteDirty) || mPTTDirty || mUpdateTimer.hasExpired())
+				{
+					mUpdateTimer.setTimerExpirySec(UPDATE_THROTTLE_SECONDS);
+					sendPositionalUpdate();
+				}
+			}
+		break;
+		
+		//MARK: stateLeavingSession
+		case stateLeavingSession:		// waiting for terminate session response
+			// The handler for the Session.Terminate response will transition from here to stateSessionTerminated.
+		break;
+
+		//MARK: stateSessionTerminated
+		case stateSessionTerminated:
+			
+			// Must do this first, since it uses mAudioSession.
+			notifyStatusObservers(LLVoiceClientStatusObserver::STATUS_LEFT_CHANNEL);
+			
+			if(mAudioSession)
+			{
+				sessionState *oldSession = mAudioSession;
+
+				mAudioSession = NULL;
+				// We just notified status observers about this change.  Don't do it again.
+				mAudioSessionChanged = false;
+
+				// The old session may now need to be deleted.
+				reapSession(oldSession);
+			}
+			else
+			{
+				LL_WARNS("Voice") << "stateSessionTerminated with NULL mAudioSession" << LL_ENDL;
+			}
+	
+			// Always reset the terminate request flag when we get here.
+			mSessionTerminateRequested = false;
+
+			if(mVoiceEnabled && !mRelogRequested)
+			{				
+				// Just leaving a channel, go back to stateNoChannel (the "logged in but have no channel" state).
+				setState(stateNoChannel);
+			}
+			else
+			{
+				// Shutting down voice, continue with disconnecting.
+				logout();
+				
+				// The state machine will take it from here
+				mRelogRequested = false;
+			}
+			
+		break;
+		
+		//MARK: stateLoggingOut
+		case stateLoggingOut:			// waiting for logout response
+			// The handler for the AccountLoginStateChangeEvent will transition from here to stateLoggedOut.
+		break;
+		
+		//MARK: stateLoggedOut
+		case stateLoggedOut:			// logout response received
+			
+			// Once we're logged out, all these things are invalid.
+			mAccountHandle.clear();
+			deleteAllSessions();
+			deleteAllBuddies();
+
+			if(mVoiceEnabled && !mRelogRequested)
+			{
+				// User was logged out, but wants to be logged in.  Send a new login request.
+				setState(stateNeedsLogin);
+			}
+			else
+			{
+				// shut down the connector
+				connectorShutdown();
+			}
+		break;
+		
+		//MARK: stateConnectorStopping
+		case stateConnectorStopping:	// waiting for connector stop
+			// The handler for the Connector.InitiateShutdown response will transition from here to stateConnectorStopped.
+		break;
+
+		//MARK: stateConnectorStopped
+		case stateConnectorStopped:		// connector stop received
+			setState(stateDisableCleanup);
+		break;
+
+		//MARK: stateConnectorFailed
+		case stateConnectorFailed:
+			setState(stateConnectorFailedWaiting);
+		break;
+		//MARK: stateConnectorFailedWaiting
+		case stateConnectorFailedWaiting:
+			if(!mVoiceEnabled)
+			{
+				setState(stateDisableCleanup);
+			}
+		break;
+
+		//MARK: stateLoginFailed
+		case stateLoginFailed:
+			setState(stateLoginFailedWaiting);
+		break;
+		//MARK: stateLoginFailedWaiting
+		case stateLoginFailedWaiting:
+			if(!mVoiceEnabled)
+			{
+				setState(stateDisableCleanup);
+			}
+		break;
+
+		//MARK: stateJoinSessionFailed
+		case stateJoinSessionFailed:
+			// Transition to error state.  Send out any notifications here.
+			if(mAudioSession)
+			{
+				LL_WARNS("Voice") << "stateJoinSessionFailed: (" << mAudioSession->mErrorStatusCode << "): " << mAudioSession->mErrorStatusString << LL_ENDL;
+			}
+			else
+			{
+				LL_WARNS("Voice") << "stateJoinSessionFailed with no current session" << LL_ENDL;
+			}
+			
+			notifyStatusObservers(LLVoiceClientStatusObserver::ERROR_UNKNOWN);
+			setState(stateJoinSessionFailedWaiting);
+		break;
+		
+		//MARK: stateJoinSessionFailedWaiting
+		case stateJoinSessionFailedWaiting:
+			// Joining a channel failed, either due to a failed channel name -> sip url lookup or an error from the join message.
+			// Region crossings may leave this state and try the join again.
+			if(mSessionTerminateRequested)
+			{
+				setState(stateSessionTerminated);
+			}
+		break;
+		
+		//MARK: stateJail
+		case stateJail:
+			// We have given up.  Do nothing.
+		break;
+
+	}
+	
+	if(mAudioSession && mAudioSession->mParticipantsChanged)
+	{
+		mAudioSession->mParticipantsChanged = false;
+		mAudioSessionChanged = true;
+	}
+	
+	if(mAudioSessionChanged)
+	{
+		mAudioSessionChanged = false;
+		notifyParticipantObservers();
 	}
 }
 
-void LLVoiceClient::updateSettings()
+void LLVoiceClient::closeSocket(void)
 {
-	if (mVoiceModule) mVoiceModule->updateSettings();
+	mSocket.reset();
+	mConnected = false;	
 }
 
-//--------------------------------------------------
-// tuning
+void LLVoiceClient::loginSendMessage()
+{
+	std::ostringstream stream;
 
-void LLVoiceClient::tuningStart()
+	bool autoPostCrashDumps = gSavedSettings.getBOOL("VivoxAutoPostCrashDumps");
+
+	stream
+	<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.Login.1\">"
+		<< "<ConnectorHandle>" << mConnectorHandle << "</ConnectorHandle>"
+		<< "<AccountName>" << mAccountName << "</AccountName>"
+		<< "<AccountPassword>" << mAccountPassword << "</AccountPassword>"
+		<< "<AudioSessionAnswerMode>VerifyAnswer</AudioSessionAnswerMode>"
+		<< "<EnableBuddiesAndPresence>true</EnableBuddiesAndPresence>"
+		<< "<BuddyManagementMode>Application</BuddyManagementMode>"
+		<< "<ParticipantPropertyFrequency>5</ParticipantPropertyFrequency>"
+		<< (autoPostCrashDumps?"<AutopostCrashDumps>true</AutopostCrashDumps>":"")
+	<< "</Request>\n\n\n";
+	
+	writeString(stream.str());
+}
+
+void LLVoiceClient::logout()
 {
-	if (mVoiceModule) mVoiceModule->tuningStart();
+	// Ensure that we'll re-request provisioning before logging in again
+	mAccountPassword.clear();
+	mVoiceAccountServerURI.clear();
+	
+	setState(stateLoggingOut);
+	logoutSendMessage();
 }
 
-void LLVoiceClient::tuningStop()
+void LLVoiceClient::logoutSendMessage()
 {
-	if (mVoiceModule) mVoiceModule->tuningStop();
+	if(!mAccountHandle.empty())
+	{
+		std::ostringstream stream;
+		stream
+		<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.Logout.1\">"
+			<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+		<< "</Request>"
+		<< "\n\n\n";
+
+		mAccountHandle.clear();
+
+		writeString(stream.str());
+	}
 }
 
-bool LLVoiceClient::inTuningMode()
+void LLVoiceClient::accountListBlockRulesSendMessage()
+{
+	if(!mAccountHandle.empty())
+	{		
+		std::ostringstream stream;
+
+		LL_DEBUGS("Voice") << "requesting block rules" << LL_ENDL;
+
+		stream
+		<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.ListBlockRules.1\">"
+			<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+		<< "</Request>"
+		<< "\n\n\n";
+
+		writeString(stream.str());
+	}
+}
+
+void LLVoiceClient::accountListAutoAcceptRulesSendMessage()
+{
+	if(!mAccountHandle.empty())
+	{		
+		std::ostringstream stream;
+
+		LL_DEBUGS("Voice") << "requesting auto-accept rules" << LL_ENDL;
+
+		stream
+		<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.ListAutoAcceptRules.1\">"
+			<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+		<< "</Request>"
+		<< "\n\n\n";
+
+		writeString(stream.str());
+	}
+}
+
+void LLVoiceClient::sessionGroupCreateSendMessage()
+{
+	if(!mAccountHandle.empty())
+	{		
+		std::ostringstream stream;
+
+		LL_DEBUGS("Voice") << "creating session group" << LL_ENDL;
+
+		stream
+		<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"SessionGroup.Create.1\">"
+			<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+			<< "<Type>Normal</Type>"
+		<< "</Request>"
+		<< "\n\n\n";
+
+		writeString(stream.str());
+	}
+}
+
+void LLVoiceClient::sessionCreateSendMessage(sessionState *session, bool startAudio, bool startText)
+{
+	LL_DEBUGS("Voice") << "requesting create: " << session->mSIPURI << LL_ENDL;
+	
+	session->mCreateInProgress = true;
+	if(startAudio)
+	{
+		session->mMediaConnectInProgress = true;
+	}
+
+	std::ostringstream stream;
+	stream
+	<< "<Request requestId=\"" << session->mSIPURI << "\" action=\"Session.Create.1\">"
+		<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+		<< "<URI>" << session->mSIPURI << "</URI>";
+
+	static const std::string allowed_chars =
+				"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+				"0123456789"
+				"-._~";
+
+	if(!session->mHash.empty())
+	{
+		stream
+			<< "<Password>" << LLURI::escape(session->mHash, allowed_chars) << "</Password>"
+			<< "<PasswordHashAlgorithm>SHA1UserName</PasswordHashAlgorithm>";
+	}
+	
+	stream
+		<< "<ConnectAudio>" << (startAudio?"true":"false") << "</ConnectAudio>"
+		<< "<ConnectText>" << (startText?"true":"false") << "</ConnectText>"
+		<< "<Name>" << mChannelName << "</Name>"
+	<< "</Request>\n\n\n";
+	writeString(stream.str());
+}
+
+void LLVoiceClient::sessionGroupAddSessionSendMessage(sessionState *session, bool startAudio, bool startText)
+{
+	LL_DEBUGS("Voice") << "requesting create: " << session->mSIPURI << LL_ENDL;
+	
+	session->mCreateInProgress = true;
+	if(startAudio)
+	{
+		session->mMediaConnectInProgress = true;
+	}
+	
+	std::string password;
+	if(!session->mHash.empty())
+	{
+		static const std::string allowed_chars =
+					"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+					"0123456789"
+					"-._~"
+					;
+		password = LLURI::escape(session->mHash, allowed_chars);
+	}
+
+	std::ostringstream stream;
+	stream
+	<< "<Request requestId=\"" << session->mSIPURI << "\" action=\"SessionGroup.AddSession.1\">"
+		<< "<SessionGroupHandle>" << session->mGroupHandle << "</SessionGroupHandle>"
+		<< "<URI>" << session->mSIPURI << "</URI>"
+		<< "<Name>" << mChannelName << "</Name>"
+		<< "<ConnectAudio>" << (startAudio?"true":"false") << "</ConnectAudio>"
+		<< "<ConnectText>" << (startText?"true":"false") << "</ConnectText>"
+		<< "<Password>" << password << "</Password>"
+		<< "<PasswordHashAlgorithm>SHA1UserName</PasswordHashAlgorithm>"
+	<< "</Request>\n\n\n"
+	;
+	
+	writeString(stream.str());
+}
+
+void LLVoiceClient::sessionMediaConnectSendMessage(sessionState *session)
+{
+	LL_DEBUGS("Voice") << "connecting audio to session handle: " << session->mHandle << LL_ENDL;
+
+	session->mMediaConnectInProgress = true;
+	
+	std::ostringstream stream;
+
+	stream
+	<< "<Request requestId=\"" << session->mHandle << "\" action=\"Session.MediaConnect.1\">"
+		<< "<SessionGroupHandle>" << session->mGroupHandle << "</SessionGroupHandle>"
+		<< "<SessionHandle>" << session->mHandle << "</SessionHandle>"
+		<< "<Media>Audio</Media>"
+	<< "</Request>\n\n\n";
+
+	writeString(stream.str());
+}
+
+void LLVoiceClient::sessionTextConnectSendMessage(sessionState *session)
+{
+	LL_DEBUGS("Voice") << "connecting text to session handle: " << session->mHandle << LL_ENDL;
+	
+	std::ostringstream stream;
+
+	stream
+	<< "<Request requestId=\"" << session->mHandle << "\" action=\"Session.TextConnect.1\">"
+		<< "<SessionGroupHandle>" << session->mGroupHandle << "</SessionGroupHandle>"
+		<< "<SessionHandle>" << session->mHandle << "</SessionHandle>"
+	<< "</Request>\n\n\n";
+
+	writeString(stream.str());
+}
+
+void LLVoiceClient::sessionTerminate()
+{
+	mSessionTerminateRequested = true;
+}
+
+void LLVoiceClient::requestRelog()
+{
+	mSessionTerminateRequested = true;
+	mRelogRequested = true;
+}
+
+
+void LLVoiceClient::leaveAudioSession()
+{
+	if(mAudioSession)
+	{
+		LL_DEBUGS("Voice") << "leaving session: " << mAudioSession->mSIPURI << LL_ENDL;
+
+		switch(getState())
+		{
+			case stateNoChannel:
+				// In this case, we want to pretend the join failed so our state machine doesn't get stuck.
+				// Skip the join failed transition state so we don't send out error notifications.
+				setState(stateJoinSessionFailedWaiting);
+			break;
+			case stateJoiningSession:
+			case stateSessionJoined:
+			case stateRunning:
+				if(!mAudioSession->mHandle.empty())
+				{
+
+#if RECORD_EVERYTHING
+					// HACK: for testing only
+					// Save looped recording
+					std::string savepath("/tmp/vivoxrecording");
+					{
+						time_t now = time(NULL);
+						const size_t BUF_SIZE = 64;
+						char time_str[BUF_SIZE];	/* Flawfinder: ignore */
+						
+						strftime(time_str, BUF_SIZE, "%Y-%m-%dT%H:%M:%SZ", gmtime(&now));
+						savepath += time_str;
+					}
+					recordingLoopSave(savepath);
+#endif
+
+					sessionMediaDisconnectSendMessage(mAudioSession);
+					setState(stateLeavingSession);
+				}
+				else
+				{
+					LL_WARNS("Voice") << "called with no session handle" << LL_ENDL;	
+					setState(stateSessionTerminated);
+				}
+			break;
+			case stateJoinSessionFailed:
+			case stateJoinSessionFailedWaiting:
+				setState(stateSessionTerminated);
+			break;
+			
+			default:
+				LL_WARNS("Voice") << "called from unknown state" << LL_ENDL;
+			break;
+		}
+	}
+	else
+	{
+		LL_WARNS("Voice") << "called with no active session" << LL_ENDL;
+		setState(stateSessionTerminated);
+	}
+}
+
+void LLVoiceClient::sessionTerminateSendMessage(sessionState *session)
+{
+	std::ostringstream stream;
+	
+	LL_DEBUGS("Voice") << "Sending Session.Terminate with handle " << session->mHandle << LL_ENDL;	
+	stream
+	<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Session.Terminate.1\">"
+		<< "<SessionHandle>" << session->mHandle << "</SessionHandle>"
+	<< "</Request>\n\n\n";
+	
+	writeString(stream.str());
+}
+
+void LLVoiceClient::sessionGroupTerminateSendMessage(sessionState *session)
+{
+	std::ostringstream stream;
+	
+	LL_DEBUGS("Voice") << "Sending SessionGroup.Terminate with handle " << session->mGroupHandle << LL_ENDL;	
+	stream
+	<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"SessionGroup.Terminate.1\">"
+		<< "<SessionGroupHandle>" << session->mGroupHandle << "</SessionGroupHandle>"
+	<< "</Request>\n\n\n";
+	
+	writeString(stream.str());
+}
+
+void LLVoiceClient::sessionMediaDisconnectSendMessage(sessionState *session)
+{
+	std::ostringstream stream;
+	
+	LL_DEBUGS("Voice") << "Sending Session.MediaDisconnect with handle " << session->mHandle << LL_ENDL;	
+	stream
+	<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Session.MediaDisconnect.1\">"
+		<< "<SessionGroupHandle>" << session->mGroupHandle << "</SessionGroupHandle>"
+		<< "<SessionHandle>" << session->mHandle << "</SessionHandle>"
+		<< "<Media>Audio</Media>"
+	<< "</Request>\n\n\n";
+	
+	writeString(stream.str());
+	
+}
+
+void LLVoiceClient::sessionTextDisconnectSendMessage(sessionState *session)
+{
+	std::ostringstream stream;
+	
+	LL_DEBUGS("Voice") << "Sending Session.TextDisconnect with handle " << session->mHandle << LL_ENDL;	
+	stream
+	<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Session.TextDisconnect.1\">"
+		<< "<SessionGroupHandle>" << session->mGroupHandle << "</SessionGroupHandle>"
+		<< "<SessionHandle>" << session->mHandle << "</SessionHandle>"
+	<< "</Request>\n\n\n";
+	
+	writeString(stream.str());
+}
+
+void LLVoiceClient::getCaptureDevicesSendMessage()
 {
-	if (mVoiceModule) 
+	std::ostringstream stream;
+	stream
+	<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Aux.GetCaptureDevices.1\">"
+	<< "</Request>\n\n\n";
+	
+	writeString(stream.str());
+}
+
+void LLVoiceClient::getRenderDevicesSendMessage()
+{
+	std::ostringstream stream;
+	stream
+	<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Aux.GetRenderDevices.1\">"
+	<< "</Request>\n\n\n";
+	
+	writeString(stream.str());
+}
+
+void LLVoiceClient::clearCaptureDevices()
+{
+	LL_DEBUGS("Voice") << "called" << LL_ENDL;
+	mCaptureDevices.clear();
+}
+
+void LLVoiceClient::addCaptureDevice(const std::string& name)
+{
+	LL_DEBUGS("Voice") << name << LL_ENDL;
+
+	mCaptureDevices.push_back(name);
+}
+
+LLVoiceClient::deviceList *LLVoiceClient::getCaptureDevices()
+{
+	return &mCaptureDevices;
+}
+
+void LLVoiceClient::setCaptureDevice(const std::string& name)
+{
+	if(name == "Default")
 	{
-		return mVoiceModule->inTuningMode();
+		if(!mCaptureDevice.empty())
+		{
+			mCaptureDevice.clear();
+			mCaptureDeviceDirty = true;	
+		}
+	}
+	else
+	{
+		if(mCaptureDevice != name)
+		{
+			mCaptureDevice = name;
+			mCaptureDeviceDirty = true;	
+		}
+	}
+}
+
+void LLVoiceClient::clearRenderDevices()
+{	
+	LL_DEBUGS("Voice") << "called" << LL_ENDL;
+	mRenderDevices.clear();
+}
+
+void LLVoiceClient::addRenderDevice(const std::string& name)
+{
+	LL_DEBUGS("Voice") << name << LL_ENDL;
+	mRenderDevices.push_back(name);
+}
+
+LLVoiceClient::deviceList *LLVoiceClient::getRenderDevices()
+{
+	return &mRenderDevices;
+}
+
+void LLVoiceClient::setRenderDevice(const std::string& name)
+{
+	if(name == "Default")
+	{
+		if(!mRenderDevice.empty())
+		{
+			mRenderDevice.clear();
+			mRenderDeviceDirty = true;	
+		}
 	}
 	else
 	{
-		return false;
+		if(mRenderDevice != name)
+		{
+			mRenderDevice = name;
+			mRenderDeviceDirty = true;	
+		}
+	}
+	
+}
+
+void LLVoiceClient::tuningStart()
+{
+	mTuningMode = true;
+	if(getState() >= stateNoChannel)
+	{
+		sessionTerminate();
+	}
+}
+
+void LLVoiceClient::tuningStop()
+{
+	mTuningMode = false;
+}
+
+bool LLVoiceClient::inTuningMode()
+{
+	bool result = false;
+	switch(getState())
+	{
+	case stateMicTuningRunning:
+		result = true;
+		break;
+	default:
+		break;
 	}
+	return result;
+}
+
+void LLVoiceClient::tuningRenderStartSendMessage(const std::string& name, bool loop)
+{		
+	mTuningAudioFile = name;
+	std::ostringstream stream;
+	stream
+	<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Aux.RenderAudioStart.1\">"
+    << "<SoundFilePath>" << mTuningAudioFile << "</SoundFilePath>"
+    << "<Loop>" << (loop?"1":"0") << "</Loop>"
+	<< "</Request>\n\n\n";
+	
+	writeString(stream.str());
+}
+
+void LLVoiceClient::tuningRenderStopSendMessage()
+{
+	std::ostringstream stream;
+	stream
+	<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Aux.RenderAudioStop.1\">"
+    << "<SoundFilePath>" << mTuningAudioFile << "</SoundFilePath>"
+	<< "</Request>\n\n\n";
+	
+	writeString(stream.str());
+}
+
+void LLVoiceClient::tuningCaptureStartSendMessage(int duration)
+{
+	LL_DEBUGS("Voice") << "sending CaptureAudioStart" << LL_ENDL;
+	
+	std::ostringstream stream;
+	stream
+	<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Aux.CaptureAudioStart.1\">"
+    << "<Duration>" << duration << "</Duration>"
+	<< "</Request>\n\n\n";
+	
+	writeString(stream.str());
+}
+
+void LLVoiceClient::tuningCaptureStopSendMessage()
+{
+	LL_DEBUGS("Voice") << "sending CaptureAudioStop" << LL_ENDL;
+	
+	std::ostringstream stream;
+	stream
+	<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Aux.CaptureAudioStop.1\">"
+	<< "</Request>\n\n\n";
+	
+	writeString(stream.str());
+
+	mTuningEnergy = 0.0f;
 }
 
 void LLVoiceClient::tuningSetMicVolume(float volume)
 {
-	if (mVoiceModule) mVoiceModule->tuningSetMicVolume(volume);
+	int scaled_volume = scale_mic_volume(volume);
+
+	if(scaled_volume != mTuningMicVolume)
+	{
+		mTuningMicVolume = scaled_volume;
+		mTuningMicVolumeDirty = true;
+	}
 }
 
 void LLVoiceClient::tuningSetSpeakerVolume(float volume)
 {
-	if (mVoiceModule) mVoiceModule->tuningSetSpeakerVolume(volume);
-}
+	int scaled_volume = scale_speaker_volume(volume);	
 
+	if(scaled_volume != mTuningSpeakerVolume)
+	{
+		mTuningSpeakerVolume = scaled_volume;
+		mTuningSpeakerVolumeDirty = true;
+	}
+}
+				
 float LLVoiceClient::tuningGetEnergy(void)
 {
-	if (mVoiceModule) 
+	return mTuningEnergy;
+}
+
+bool LLVoiceClient::deviceSettingsAvailable()
+{
+	bool result = true;
+	
+	if(!mConnected)
+		result = false;
+	
+	if(mRenderDevices.empty())
+		result = false;
+	
+	return result;
+}
+
+void LLVoiceClient::refreshDeviceLists(bool clearCurrentList)
+{
+	if(clearCurrentList)
 	{
-		return mVoiceModule->tuningGetEnergy();
+		clearCaptureDevices();
+		clearRenderDevices();
+	}
+	getCaptureDevicesSendMessage();
+	getRenderDevicesSendMessage();
+}
+
+void LLVoiceClient::daemonDied()
+{
+	// The daemon died, so the connection is gone.  Reset everything and start over.
+	LL_WARNS("Voice") << "Connection to vivox daemon lost.  Resetting state."<< LL_ENDL;
+
+	// Try to relaunch the daemon
+	setState(stateDisableCleanup);
+}
+
+void LLVoiceClient::giveUp()
+{
+	// All has failed.  Clean up and stop trying.
+	closeSocket();
+	deleteAllSessions();
+	deleteAllBuddies();
+	
+	setState(stateJail);
+}
+
+static void oldSDKTransform (LLVector3 &left, LLVector3 &up, LLVector3 &at, LLVector3d &pos, LLVector3 &vel)
+{
+	F32 nat[3], nup[3], nl[3], nvel[3]; // the new at, up, left vectors and the  new position and velocity
+	F64 npos[3];
+	
+	// The original XML command was sent like this:
+	/*
+			<< "<Position>"
+				<< "<X>" << pos[VX] << "</X>"
+				<< "<Y>" << pos[VZ] << "</Y>"
+				<< "<Z>" << pos[VY] << "</Z>"
+			<< "</Position>"
+			<< "<Velocity>"
+				<< "<X>" << mAvatarVelocity[VX] << "</X>"
+				<< "<Y>" << mAvatarVelocity[VZ] << "</Y>"
+				<< "<Z>" << mAvatarVelocity[VY] << "</Z>"
+			<< "</Velocity>"
+			<< "<AtOrientation>"
+				<< "<X>" << l.mV[VX] << "</X>"
+				<< "<Y>" << u.mV[VX] << "</Y>"
+				<< "<Z>" << a.mV[VX] << "</Z>"
+			<< "</AtOrientation>"
+			<< "<UpOrientation>"
+				<< "<X>" << l.mV[VZ] << "</X>"
+				<< "<Y>" << u.mV[VY] << "</Y>"
+				<< "<Z>" << a.mV[VZ] << "</Z>"
+			<< "</UpOrientation>"
+			<< "<LeftOrientation>"
+				<< "<X>" << l.mV [VY] << "</X>"
+				<< "<Y>" << u.mV [VZ] << "</Y>"
+				<< "<Z>" << a.mV [VY] << "</Z>"
+			<< "</LeftOrientation>";
+	*/
+
+#if 1
+	// This was the original transform done when building the XML command
+	nat[0] = left.mV[VX];
+	nat[1] = up.mV[VX];
+	nat[2] = at.mV[VX];
+
+	nup[0] = left.mV[VZ];
+	nup[1] = up.mV[VY];
+	nup[2] = at.mV[VZ];
+
+	nl[0] = left.mV[VY];
+	nl[1] = up.mV[VZ];
+	nl[2] = at.mV[VY];
+
+	npos[0] = pos.mdV[VX];
+	npos[1] = pos.mdV[VZ];
+	npos[2] = pos.mdV[VY];
+
+	nvel[0] = vel.mV[VX];
+	nvel[1] = vel.mV[VZ];
+	nvel[2] = vel.mV[VY];
+
+	for(int i=0;i<3;++i) {
+		at.mV[i] = nat[i];
+		up.mV[i] = nup[i];
+		left.mV[i] = nl[i];
+		pos.mdV[i] = npos[i];
+	}
+	
+	// This was the original transform done in the SDK
+	nat[0] = at.mV[2];
+	nat[1] = 0; // y component of at vector is always 0, this was up[2]
+	nat[2] = -1 * left.mV[2];
+
+	// We override whatever the application gives us
+	nup[0] = 0; // x component of up vector is always 0
+	nup[1] = 1; // y component of up vector is always 1
+	nup[2] = 0; // z component of up vector is always 0
+
+	nl[0] = at.mV[0];
+	nl[1] = 0;  // y component of left vector is always zero, this was up[0]
+	nl[2] = -1 * left.mV[0];
+
+	npos[2] = pos.mdV[2] * -1.0;
+	npos[1] = pos.mdV[1];
+	npos[0] = pos.mdV[0];
+
+	for(int i=0;i<3;++i) {
+		at.mV[i] = nat[i];
+		up.mV[i] = nup[i];
+		left.mV[i] = nl[i];
+		pos.mdV[i] = npos[i];
+	}
+#else
+	// This is the compose of the two transforms (at least, that's what I'm trying for)
+	nat[0] = at.mV[VX];
+	nat[1] = 0; // y component of at vector is always 0, this was up[2]
+	nat[2] = -1 * up.mV[VZ];
+
+	// We override whatever the application gives us
+	nup[0] = 0; // x component of up vector is always 0
+	nup[1] = 1; // y component of up vector is always 1
+	nup[2] = 0; // z component of up vector is always 0
+
+	nl[0] = left.mV[VX];
+	nl[1] = 0;  // y component of left vector is always zero, this was up[0]
+	nl[2] = -1 * left.mV[VY];
+
+	npos[0] = pos.mdV[VX];
+	npos[1] = pos.mdV[VZ];
+	npos[2] = pos.mdV[VY] * -1.0;
+
+	nvel[0] = vel.mV[VX];
+	nvel[1] = vel.mV[VZ];
+	nvel[2] = vel.mV[VY];
+
+	for(int i=0;i<3;++i) {
+		at.mV[i] = nat[i];
+		up.mV[i] = nup[i];
+		left.mV[i] = nl[i];
+		pos.mdV[i] = npos[i];
+	}
+	
+#endif
+}
+
+void LLVoiceClient::sendPositionalUpdate(void)
+{	
+	std::ostringstream stream;
+	
+	if(mSpatialCoordsDirty)
+	{
+		LLVector3 l, u, a, vel;
+		LLVector3d pos;
+
+		mSpatialCoordsDirty = false;
+		
+		// Always send both speaker and listener positions together.
+		stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Session.Set3DPosition.1\">"		
+			<< "<SessionHandle>" << getAudioSessionHandle() << "</SessionHandle>";
+		
+		stream << "<SpeakerPosition>";
+
+//		LL_DEBUGS("Voice") << "Sending speaker position " << mAvatarPosition << LL_ENDL;
+		l = mAvatarRot.getLeftRow();
+		u = mAvatarRot.getUpRow();
+		a = mAvatarRot.getFwdRow();
+		pos = mAvatarPosition;
+		vel = mAvatarVelocity;
+
+		// SLIM SDK: the old SDK was doing a transform on the passed coordinates that the new one doesn't do anymore.
+		// The old transform is replicated by this function.
+		oldSDKTransform(l, u, a, pos, vel);
+		
+		stream 
+			<< "<Position>"
+				<< "<X>" << pos.mdV[VX] << "</X>"
+				<< "<Y>" << pos.mdV[VY] << "</Y>"
+				<< "<Z>" << pos.mdV[VZ] << "</Z>"
+			<< "</Position>"
+			<< "<Velocity>"
+				<< "<X>" << vel.mV[VX] << "</X>"
+				<< "<Y>" << vel.mV[VY] << "</Y>"
+				<< "<Z>" << vel.mV[VZ] << "</Z>"
+			<< "</Velocity>"
+			<< "<AtOrientation>"
+				<< "<X>" << a.mV[VX] << "</X>"
+				<< "<Y>" << a.mV[VY] << "</Y>"
+				<< "<Z>" << a.mV[VZ] << "</Z>"
+			<< "</AtOrientation>"
+			<< "<UpOrientation>"
+				<< "<X>" << u.mV[VX] << "</X>"
+				<< "<Y>" << u.mV[VY] << "</Y>"
+				<< "<Z>" << u.mV[VZ] << "</Z>"
+			<< "</UpOrientation>"
+			<< "<LeftOrientation>"
+				<< "<X>" << l.mV [VX] << "</X>"
+				<< "<Y>" << l.mV [VY] << "</Y>"
+				<< "<Z>" << l.mV [VZ] << "</Z>"
+			<< "</LeftOrientation>";
+
+		stream << "</SpeakerPosition>";
+
+		stream << "<ListenerPosition>";
+
+		LLVector3d	earPosition;
+		LLVector3	earVelocity;
+		LLMatrix3	earRot;
+		
+		switch(mEarLocation)
+		{
+			case earLocCamera:
+			default:
+				earPosition = mCameraPosition;
+				earVelocity = mCameraVelocity;
+				earRot = mCameraRot;
+			break;
+			
+			case earLocAvatar:
+				earPosition = mAvatarPosition;
+				earVelocity = mAvatarVelocity;
+				earRot = mAvatarRot;
+			break;
+			
+			case earLocMixed:
+				earPosition = mAvatarPosition;
+				earVelocity = mAvatarVelocity;
+				earRot = mCameraRot;
+			break;
+		}
+
+		l = earRot.getLeftRow();
+		u = earRot.getUpRow();
+		a = earRot.getFwdRow();
+		pos = earPosition;
+		vel = earVelocity;
+
+//		LL_DEBUGS("Voice") << "Sending listener position " << earPosition << LL_ENDL;
+		
+		oldSDKTransform(l, u, a, pos, vel);
+		
+		stream 
+			<< "<Position>"
+				<< "<X>" << pos.mdV[VX] << "</X>"
+				<< "<Y>" << pos.mdV[VY] << "</Y>"
+				<< "<Z>" << pos.mdV[VZ] << "</Z>"
+			<< "</Position>"
+			<< "<Velocity>"
+				<< "<X>" << vel.mV[VX] << "</X>"
+				<< "<Y>" << vel.mV[VY] << "</Y>"
+				<< "<Z>" << vel.mV[VZ] << "</Z>"
+			<< "</Velocity>"
+			<< "<AtOrientation>"
+				<< "<X>" << a.mV[VX] << "</X>"
+				<< "<Y>" << a.mV[VY] << "</Y>"
+				<< "<Z>" << a.mV[VZ] << "</Z>"
+			<< "</AtOrientation>"
+			<< "<UpOrientation>"
+				<< "<X>" << u.mV[VX] << "</X>"
+				<< "<Y>" << u.mV[VY] << "</Y>"
+				<< "<Z>" << u.mV[VZ] << "</Z>"
+			<< "</UpOrientation>"
+			<< "<LeftOrientation>"
+				<< "<X>" << l.mV [VX] << "</X>"
+				<< "<Y>" << l.mV [VY] << "</Y>"
+				<< "<Z>" << l.mV [VZ] << "</Z>"
+			<< "</LeftOrientation>";
+
+
+		stream << "</ListenerPosition>";
+
+		stream << "</Request>\n\n\n";
+	}	
+	
+	if(mAudioSession && (mAudioSession->mVolumeDirty || mAudioSession->mMuteDirty))
+	{
+		participantMap::iterator iter = mAudioSession->mParticipantsByURI.begin();
+
+		mAudioSession->mVolumeDirty = false;
+		mAudioSession->mMuteDirty = false;
+		
+		for(; iter != mAudioSession->mParticipantsByURI.end(); iter++)
+		{
+			participantState *p = iter->second;
+
+			if(p->mVolumeDirty)
+			{
+				// Can't set volume/mute for yourself
+				if(!p->mIsSelf)
+				{
+					// scale from the range 0.0-1.0 to vivox volume in the range 0-100
+					S32 volume = llround(p->mVolume / VOLUME_SCALE_VIVOX);
+
+					bool mute = p->mOnMuteList;
+
+					if(mute)
+					{
+						// SetParticipantMuteForMe doesn't work in p2p sessions.
+						// If we want the user to be muted, set their volume to 0 as well.
+						// This isn't perfect, but it will at least reduce their volume to a minimum.
+						volume = 0;
+
+						// Mark the current volume level as set to prevent incoming events
+						// changing it to 0, so that we can return to it when unmuting.
+						p->mVolumeSet = true;
+					}
+
+					if(volume == 0)
+					{
+						mute = true;
+					}
+
+					LL_DEBUGS("Voice") << "Setting volume/mute for avatar " << p->mAvatarID << " to " << volume << (mute?"/true":"/false") << LL_ENDL;
+					
+					// SLIM SDK: Send both volume and mute commands.
+					
+					// Send a "volume for me" command for the user.
+					stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Session.SetParticipantVolumeForMe.1\">"
+						<< "<SessionHandle>" << getAudioSessionHandle() << "</SessionHandle>"
+						<< "<ParticipantURI>" << p->mURI << "</ParticipantURI>"
+						<< "<Volume>" << volume << "</Volume>"
+						<< "</Request>\n\n\n";
+
+					if(!mAudioSession->mIsP2P)
+					{
+						// Send a "mute for me" command for the user
+						// Doesn't work in P2P sessions
+						stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Session.SetParticipantMuteForMe.1\">"
+							<< "<SessionHandle>" << getAudioSessionHandle() << "</SessionHandle>"
+							<< "<ParticipantURI>" << p->mURI << "</ParticipantURI>"
+							<< "<Mute>" << (mute?"1":"0") << "</Mute>"
+							<< "<Scope>Audio</Scope>"
+							<< "</Request>\n\n\n";
+					}
+				}
+				
+				p->mVolumeDirty = false;
+			}
+		}
+	}
+			
+	buildLocalAudioUpdates(stream);
+	
+	if(!stream.str().empty())
+	{
+		writeString(stream.str());
+	}
+	
+	// Friends list updates can be huge, especially on the first voice login of an account with lots of friends.
+	// Batching them all together can choke SLVoice, so send them in separate writes.
+	sendFriendsListUpdates();
+}
+
+void LLVoiceClient::buildSetCaptureDevice(std::ostringstream &stream)
+{
+	if(mCaptureDeviceDirty)
+	{
+		LL_DEBUGS("Voice") << "Setting input device = \"" << mCaptureDevice << "\"" << LL_ENDL;
+	
+		stream 
+		<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Aux.SetCaptureDevice.1\">"
+			<< "<CaptureDeviceSpecifier>" << mCaptureDevice << "</CaptureDeviceSpecifier>"
+		<< "</Request>"
+		<< "\n\n\n";
+		
+		mCaptureDeviceDirty = false;
+	}
+}
+
+void LLVoiceClient::buildSetRenderDevice(std::ostringstream &stream)
+{
+	if(mRenderDeviceDirty)
+	{
+		LL_DEBUGS("Voice") << "Setting output device = \"" << mRenderDevice << "\"" << LL_ENDL;
+
+		stream
+		<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Aux.SetRenderDevice.1\">"
+			<< "<RenderDeviceSpecifier>" << mRenderDevice << "</RenderDeviceSpecifier>"
+		<< "</Request>"
+		<< "\n\n\n";
+		mRenderDeviceDirty = false;
+	}
+}
+
+void LLVoiceClient::buildLocalAudioUpdates(std::ostringstream &stream)
+{
+	buildSetCaptureDevice(stream);
+
+	buildSetRenderDevice(stream);
+
+	if(mPTTDirty)
+	{
+		mPTTDirty = false;
+
+		// Send a local mute command.
+		// NOTE that the state of "PTT" is the inverse of "local mute".
+		//   (i.e. when PTT is true, we send a mute command with "false", and vice versa)
+		
+		LL_DEBUGS("Voice") << "Sending MuteLocalMic command with parameter " << (mPTT?"false":"true") << LL_ENDL;
+
+		stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Connector.MuteLocalMic.1\">"
+			<< "<ConnectorHandle>" << mConnectorHandle << "</ConnectorHandle>"
+			<< "<Value>" << (mPTT?"false":"true") << "</Value>"
+			<< "</Request>\n\n\n";
+		
+	}
+
+	if(mSpeakerMuteDirty)
+	{
+		const char *muteval = ((mSpeakerVolume <= scale_speaker_volume(0))?"true":"false");
+
+		mSpeakerMuteDirty = false;
+
+		LL_INFOS("Voice") << "Setting speaker mute to " << muteval  << LL_ENDL;
+		
+		stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Connector.MuteLocalSpeaker.1\">"
+			<< "<ConnectorHandle>" << mConnectorHandle << "</ConnectorHandle>"
+			<< "<Value>" << muteval << "</Value>"
+			<< "</Request>\n\n\n";	
+		
+	}
+	
+	if(mSpeakerVolumeDirty)
+	{
+		mSpeakerVolumeDirty = false;
+
+		LL_INFOS("Voice") << "Setting speaker volume to " << mSpeakerVolume  << LL_ENDL;
+
+		stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Connector.SetLocalSpeakerVolume.1\">"
+			<< "<ConnectorHandle>" << mConnectorHandle << "</ConnectorHandle>"
+			<< "<Value>" << mSpeakerVolume << "</Value>"
+			<< "</Request>\n\n\n";
+			
+	}
+	
+	if(mMicVolumeDirty)
+	{
+		mMicVolumeDirty = false;
+
+		LL_INFOS("Voice") << "Setting mic volume to " << mMicVolume  << LL_ENDL;
+
+		stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Connector.SetLocalMicVolume.1\">"
+			<< "<ConnectorHandle>" << mConnectorHandle << "</ConnectorHandle>"
+			<< "<Value>" << mMicVolume << "</Value>"
+			<< "</Request>\n\n\n";				
+	}
+
+	
+}
+
+void LLVoiceClient::checkFriend(const LLUUID& id)
+{
+	std::string name;
+	buddyListEntry *buddy = findBuddy(id);
+
+	// Make sure we don't add a name before it's been looked up.
+	if(gCacheName->getFullName(id, name))
+	{
+
+		const LLRelationship* relationInfo = LLAvatarTracker::instance().getBuddyInfo(id);
+		bool canSeeMeOnline = false;
+		if(relationInfo && relationInfo->isRightGrantedTo(LLRelationship::GRANT_ONLINE_STATUS))
+			canSeeMeOnline = true;
+		
+		// When we get here, mNeedsSend is true and mInSLFriends is false.  Change them as necessary.
+		
+		if(buddy)
+		{
+			// This buddy is already in both lists.
+
+			if(name != buddy->mDisplayName)
+			{
+				// The buddy is in the list with the wrong name.  Update it with the correct name.
+				LL_WARNS("Voice") << "Buddy " << id << " has wrong name (\"" << buddy->mDisplayName << "\" should be \"" << name << "\"), updating."<< LL_ENDL;
+				buddy->mDisplayName = name;
+				buddy->mNeedsNameUpdate = true;		// This will cause the buddy to be resent.
+			}
+		}
+		else
+		{
+			// This buddy was not in the vivox list, needs to be added.
+			buddy = addBuddy(sipURIFromID(id), name);
+			buddy->mUUID = id;
+		}
+		
+		// In all the above cases, the buddy is in the SL friends list (which is how we got here).
+		buddy->mInSLFriends = true;
+		buddy->mCanSeeMeOnline = canSeeMeOnline;
+		buddy->mNameResolved = true;
+		
 	}
 	else
 	{
-		return 0.0;
+		// This name hasn't been looked up yet.  Don't do anything with this buddy list entry until it has.
+		if(buddy)
+		{
+			buddy->mNameResolved = false;
+		}
+		
+		// Initiate a lookup.
+		// The "lookup completed" callback will ensure that the friends list is rechecked after it completes.
+		lookupName(id);
 	}
 }
 
+void LLVoiceClient::clearAllLists()
+{
+	// FOR TESTING ONLY
+	
+	// This will send the necessary commands to delete ALL buddies, autoaccept rules, and block rules SLVoice tells us about.
+	buddyListMap::iterator buddy_it;
+	for(buddy_it = mBuddyListMap.begin(); buddy_it != mBuddyListMap.end();)
+	{
+		buddyListEntry *buddy = buddy_it->second;
+		buddy_it++;
+		
+		std::ostringstream stream;
 
-//------------------------------------------------
-// devices
+		if(buddy->mInVivoxBuddies)
+		{
+			// delete this entry from the vivox buddy list
+			buddy->mInVivoxBuddies = false;
+			LL_DEBUGS("Voice") << "delete " << buddy->mURI << " (" << buddy->mDisplayName << ")" << LL_ENDL;
+			stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.BuddyDelete.1\">"
+				<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+				<< "<BuddyURI>" << buddy->mURI << "</BuddyURI>"
+				<< "</Request>\n\n\n";		
+		}
 
-bool LLVoiceClient::deviceSettingsAvailable()
+		if(buddy->mHasBlockListEntry)
+		{
+			// Delete the associated block list entry (so the block list doesn't fill up with junk)
+			buddy->mHasBlockListEntry = false;
+			stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.DeleteBlockRule.1\">"
+				<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+				<< "<BlockMask>" << buddy->mURI << "</BlockMask>"
+				<< "</Request>\n\n\n";								
+		}
+		if(buddy->mHasAutoAcceptListEntry)
+		{
+			// Delete the associated auto-accept list entry (so the auto-accept list doesn't fill up with junk)
+			buddy->mHasAutoAcceptListEntry = false;
+			stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.DeleteAutoAcceptRule.1\">"
+				<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+				<< "<AutoAcceptMask>" << buddy->mURI << "</AutoAcceptMask>"
+				<< "</Request>\n\n\n";
+		}
+
+		writeString(stream.str());
+
+	}
+}
+
+void LLVoiceClient::sendFriendsListUpdates()
 {
-	if (mVoiceModule) 
+	if(mBuddyListMapPopulated && mBlockRulesListReceived && mAutoAcceptRulesListReceived && mFriendsListDirty)
 	{
-		return mVoiceModule->deviceSettingsAvailable();
+		mFriendsListDirty = false;
+		
+		if(0)
+		{
+			// FOR TESTING ONLY -- clear all buddy list, block list, and auto-accept list entries.
+			clearAllLists();
+			return;
+		}
+		
+		LL_INFOS("Voice") << "Checking vivox buddy list against friends list..." << LL_ENDL;
+		
+		buddyListMap::iterator buddy_it;
+		for(buddy_it = mBuddyListMap.begin(); buddy_it != mBuddyListMap.end(); buddy_it++)
+		{
+			// reset the temp flags in the local buddy list
+			buddy_it->second->mInSLFriends = false;
+		}
+		
+		// correlate with the friends list
+		{
+			LLCollectAllBuddies collect;
+			LLAvatarTracker::instance().applyFunctor(collect);
+			LLCollectAllBuddies::buddy_map_t::const_iterator it = collect.mOnline.begin();
+			LLCollectAllBuddies::buddy_map_t::const_iterator end = collect.mOnline.end();
+			
+			for ( ; it != end; ++it)
+			{
+				checkFriend(it->second);
+			}
+			it = collect.mOffline.begin();
+			end = collect.mOffline.end();
+			for ( ; it != end; ++it)
+			{
+				checkFriend(it->second);
+			}
+		}
+				
+		LL_INFOS("Voice") << "Sending friend list updates..." << LL_ENDL;
+
+		for(buddy_it = mBuddyListMap.begin(); buddy_it != mBuddyListMap.end();)
+		{
+			buddyListEntry *buddy = buddy_it->second;
+			buddy_it++;
+			
+			// Ignore entries that aren't resolved yet.
+			if(buddy->mNameResolved)
+			{
+				std::ostringstream stream;
+
+				if(buddy->mInSLFriends && (!buddy->mInVivoxBuddies || buddy->mNeedsNameUpdate))
+				{					
+					if(mNumberOfAliases > 0)
+					{
+						// Add (or update) this entry in the vivox buddy list
+						buddy->mInVivoxBuddies = true;
+						buddy->mNeedsNameUpdate = false;
+						LL_DEBUGS("Voice") << "add/update " << buddy->mURI << " (" << buddy->mDisplayName << ")" << LL_ENDL;
+						stream 
+							<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.BuddySet.1\">"
+								<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+								<< "<BuddyURI>" << buddy->mURI << "</BuddyURI>"
+								<< "<DisplayName>" << buddy->mDisplayName << "</DisplayName>"
+								<< "<BuddyData></BuddyData>"	// Without this, SLVoice doesn't seem to parse the command.
+								<< "<GroupID>0</GroupID>"
+							<< "</Request>\n\n\n";	
+					}
+				}
+				else if(!buddy->mInSLFriends)
+				{
+					// This entry no longer exists in your SL friends list.  Remove all traces of it from the Vivox buddy list.
+ 					if(buddy->mInVivoxBuddies)
+					{
+						// delete this entry from the vivox buddy list
+						buddy->mInVivoxBuddies = false;
+						LL_DEBUGS("Voice") << "delete " << buddy->mURI << " (" << buddy->mDisplayName << ")" << LL_ENDL;
+						stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.BuddyDelete.1\">"
+							<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+							<< "<BuddyURI>" << buddy->mURI << "</BuddyURI>"
+							<< "</Request>\n\n\n";		
+					}
+
+					if(buddy->mHasBlockListEntry)
+					{
+						// Delete the associated block list entry, if any
+						buddy->mHasBlockListEntry = false;
+						stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.DeleteBlockRule.1\">"
+							<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+							<< "<BlockMask>" << buddy->mURI << "</BlockMask>"
+							<< "</Request>\n\n\n";								
+					}
+					if(buddy->mHasAutoAcceptListEntry)
+					{
+						// Delete the associated auto-accept list entry, if any
+						buddy->mHasAutoAcceptListEntry = false;
+						stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.DeleteAutoAcceptRule.1\">"
+							<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+							<< "<AutoAcceptMask>" << buddy->mURI << "</AutoAcceptMask>"
+							<< "</Request>\n\n\n";
+					}
+				}
+				
+				if(buddy->mInSLFriends)
+				{
+
+					if(buddy->mCanSeeMeOnline)
+					{
+						// Buddy should not be blocked.
+
+						// If this buddy doesn't already have either a block or autoaccept list entry, we'll update their status when we receive a SubscriptionEvent.
+						
+						// If the buddy has a block list entry, delete it.
+						if(buddy->mHasBlockListEntry)
+						{
+							buddy->mHasBlockListEntry = false;
+							stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.DeleteBlockRule.1\">"
+								<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+								<< "<BlockMask>" << buddy->mURI << "</BlockMask>"
+								<< "</Request>\n\n\n";		
+							
+							
+							// If we just deleted a block list entry, add an auto-accept entry.
+							if(!buddy->mHasAutoAcceptListEntry)
+							{
+								buddy->mHasAutoAcceptListEntry = true;								
+								stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.CreateAutoAcceptRule.1\">"
+									<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+									<< "<AutoAcceptMask>" << buddy->mURI << "</AutoAcceptMask>"
+									<< "<AutoAddAsBuddy>0</AutoAddAsBuddy>"
+									<< "</Request>\n\n\n";
+							}
+						}
+					}
+					else
+					{
+						// Buddy should be blocked.
+						
+						// If this buddy doesn't already have either a block or autoaccept list entry, we'll update their status when we receive a SubscriptionEvent.
+
+						// If this buddy has an autoaccept entry, delete it
+						if(buddy->mHasAutoAcceptListEntry)
+						{
+							buddy->mHasAutoAcceptListEntry = false;
+							stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.DeleteAutoAcceptRule.1\">"
+								<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+								<< "<AutoAcceptMask>" << buddy->mURI << "</AutoAcceptMask>"
+								<< "</Request>\n\n\n";
+						
+							// If we just deleted an auto-accept entry, add a block list entry.
+							if(!buddy->mHasBlockListEntry)
+							{
+								buddy->mHasBlockListEntry = true;
+								stream << "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.CreateBlockRule.1\">"
+									<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+									<< "<BlockMask>" << buddy->mURI << "</BlockMask>"
+									<< "<PresenceOnly>1</PresenceOnly>"
+									<< "</Request>\n\n\n";								
+							}
+						}
+					}
+
+					if(!buddy->mInSLFriends && !buddy->mInVivoxBuddies)
+					{
+						// Delete this entry from the local buddy list.  This should NOT invalidate the iterator,
+						// since it has already been incremented to the next entry.
+						deleteBuddy(buddy->mURI);
+					}
+
+				}
+				writeString(stream.str());
+			}
+		}
+	}
+}
+
+/////////////////////////////
+// Response/Event handlers
+
+void LLVoiceClient::connectorCreateResponse(int statusCode, std::string &statusString, std::string &connectorHandle, std::string &versionID)
+{	
+	if(statusCode != 0)
+	{
+		LL_WARNS("Voice") << "Connector.Create response failure: " << statusString << LL_ENDL;
+		setState(stateConnectorFailed);
 	}
 	else
 	{
-		return false;
+		// Connector created, move forward.
+		LL_INFOS("Voice") << "Connector.Create succeeded, Vivox SDK version is " << versionID << LL_ENDL;
+		mAPIVersion = versionID;
+		mConnectorHandle = connectorHandle;
+		if(getState() == stateConnectorStarting)
+		{
+			setState(stateConnectorStarted);
+		}
 	}
 }
 
-void LLVoiceClient::refreshDeviceLists(bool clearCurrentList)
+void LLVoiceClient::loginResponse(int statusCode, std::string &statusString, std::string &accountHandle, int numberOfAliases)
+{ 
+	LL_DEBUGS("Voice") << "Account.Login response (" << statusCode << "): " << statusString << LL_ENDL;
+	
+	// Status code of 20200 means "bad password".  We may want to special-case that at some point.
+	
+	if ( statusCode == 401 )
+	{
+		// Login failure which is probably caused by the delay after a user's password being updated.
+		LL_INFOS("Voice") << "Account.Login response failure (" << statusCode << "): " << statusString << LL_ENDL;
+		setState(stateLoginRetry);
+	}
+	else if(statusCode != 0)
+	{
+		LL_WARNS("Voice") << "Account.Login response failure (" << statusCode << "): " << statusString << LL_ENDL;
+		setState(stateLoginFailed);
+	}
+	else
+	{
+		// Login succeeded, move forward.
+		mAccountHandle = accountHandle;
+		mNumberOfAliases = numberOfAliases;
+		// This needs to wait until the AccountLoginStateChangeEvent is received.
+//		if(getState() == stateLoggingIn)
+//		{
+//			setState(stateLoggedIn);
+//		}
+	}
+}
+
+void LLVoiceClient::sessionCreateResponse(std::string &requestId, int statusCode, std::string &statusString, std::string &sessionHandle)
+{	
+	sessionState *session = findSessionBeingCreatedByURI(requestId);
+	
+	if(session)
+	{
+		session->mCreateInProgress = false;
+	}
+	
+	if(statusCode != 0)
+	{
+		LL_WARNS("Voice") << "Session.Create response failure (" << statusCode << "): " << statusString << LL_ENDL;
+		if(session)
+		{
+			session->mErrorStatusCode = statusCode;		
+			session->mErrorStatusString = statusString;
+			if(session == mAudioSession)
+			{
+				setState(stateJoinSessionFailed);
+			}
+			else
+			{
+				reapSession(session);
+			}
+		}
+	}
+	else
+	{
+		LL_INFOS("Voice") << "Session.Create response received (success), session handle is " << sessionHandle << LL_ENDL;
+		if(session)
+		{
+			setSessionHandle(session, sessionHandle);
+		}
+	}
+}
+
+void LLVoiceClient::sessionGroupAddSessionResponse(std::string &requestId, int statusCode, std::string &statusString, std::string &sessionHandle)
+{	
+	sessionState *session = findSessionBeingCreatedByURI(requestId);
+	
+	if(session)
+	{
+		session->mCreateInProgress = false;
+	}
+	
+	if(statusCode != 0)
+	{
+		LL_WARNS("Voice") << "SessionGroup.AddSession response failure (" << statusCode << "): " << statusString << LL_ENDL;
+		if(session)
+		{
+			session->mErrorStatusCode = statusCode;		
+			session->mErrorStatusString = statusString;
+			if(session == mAudioSession)
+			{
+				setState(stateJoinSessionFailed);
+			}
+			else
+			{
+				reapSession(session);
+			}
+		}
+	}
+	else
+	{
+		LL_DEBUGS("Voice") << "SessionGroup.AddSession response received (success), session handle is " << sessionHandle << LL_ENDL;
+		if(session)
+		{
+			setSessionHandle(session, sessionHandle);
+		}
+	}
+}
+
+void LLVoiceClient::sessionConnectResponse(std::string &requestId, int statusCode, std::string &statusString)
 {
-	if (mVoiceModule) mVoiceModule->refreshDeviceLists(clearCurrentList);
+	sessionState *session = findSession(requestId);
+	if(statusCode != 0)
+	{
+		LL_WARNS("Voice") << "Session.Connect response failure (" << statusCode << "): " << statusString << LL_ENDL;
+		if(session)
+		{
+			session->mMediaConnectInProgress = false;
+			session->mErrorStatusCode = statusCode;		
+			session->mErrorStatusString = statusString;
+			if(session == mAudioSession)
+				setState(stateJoinSessionFailed);
+		}
+	}
+	else
+	{
+		LL_DEBUGS("Voice") << "Session.Connect response received (success)" << LL_ENDL;
+	}
 }
 
-void LLVoiceClient::setCaptureDevice(const std::string& name)
+void LLVoiceClient::logoutResponse(int statusCode, std::string &statusString)
+{	
+	if(statusCode != 0)
+	{
+		LL_WARNS("Voice") << "Account.Logout response failure: " << statusString << LL_ENDL;
+		// Should this ever fail?  do we care if it does?
+	}
+}
+
+void LLVoiceClient::connectorShutdownResponse(int statusCode, std::string &statusString)
 {
-	if (mVoiceModule) mVoiceModule->setCaptureDevice(name);
+	if(statusCode != 0)
+	{
+		LL_WARNS("Voice") << "Connector.InitiateShutdown response failure: " << statusString << LL_ENDL;
+		// Should this ever fail?  do we care if it does?
+	}
 	
+	mConnected = false;
+	
+	if(getState() == stateConnectorStopping)
+	{
+		setState(stateConnectorStopped);
+	}
 }
 
-void LLVoiceClient::setRenderDevice(const std::string& name)
+void LLVoiceClient::sessionAddedEvent(
+		std::string &uriString, 
+		std::string &alias, 
+		std::string &sessionHandle, 
+		std::string &sessionGroupHandle, 
+		bool isChannel, 
+		bool incoming,
+		std::string &nameString,
+		std::string &applicationString)
 {
-	if (mVoiceModule) mVoiceModule->setRenderDevice(name);	
+	sessionState *session = NULL;
+
+	LL_INFOS("Voice") << "session " << uriString << ", alias " << alias << ", name " << nameString << " handle " << sessionHandle << LL_ENDL;
+	
+	session = addSession(uriString, sessionHandle);
+	if(session)
+	{
+		session->mGroupHandle = sessionGroupHandle;
+		session->mIsChannel = isChannel;
+		session->mIncoming = incoming;
+		session->mAlias = alias;
+			
+		// Generate a caller UUID -- don't need to do this for channels
+		if(!session->mIsChannel)
+		{
+			if(IDFromName(session->mSIPURI, session->mCallerID))
+			{
+				// Normal URI(base64-encoded UUID) 
+			}
+			else if(!session->mAlias.empty() && IDFromName(session->mAlias, session->mCallerID))
+			{
+				// Wrong URI, but an alias is available.  Stash the incoming URI as an alternate
+				session->mAlternateSIPURI = session->mSIPURI;
+				
+				// and generate a proper URI from the ID.
+				setSessionURI(session, sipURIFromID(session->mCallerID));
+			}
+			else
+			{
+				LL_INFOS("Voice") << "Could not generate caller id from uri, using hash of uri " << session->mSIPURI << LL_ENDL;
+				setUUIDFromStringHash(session->mCallerID, session->mSIPURI);
+				session->mSynthesizedCallerID = true;
+				
+				// Can't look up the name in this case -- we have to extract it from the URI.
+				std::string namePortion = nameFromsipURI(session->mSIPURI);
+				if(namePortion.empty())
+				{
+					// Didn't seem to be a SIP URI, just use the whole provided name.
+					namePortion = nameString;
+				}
+				
+				// Some incoming names may be separated with an underscore instead of a space.  Fix this.
+				LLStringUtil::replaceChar(namePortion, '_', ' ');
+				
+				// Act like we just finished resolving the name (this stores it in all the right places)
+				avatarNameResolved(session->mCallerID, namePortion);
+			}
+		
+			LL_INFOS("Voice") << "caller ID: " << session->mCallerID << LL_ENDL;
+
+			if(!session->mSynthesizedCallerID)
+			{
+				// If we got here, we don't have a proper name.  Initiate a lookup.
+				lookupName(session->mCallerID);
+			}
+		}
+	}
 }
 
-const LLVoiceDeviceList& LLVoiceClient::getCaptureDevices()
+void LLVoiceClient::sessionGroupAddedEvent(std::string &sessionGroupHandle)
 {
-	static LLVoiceDeviceList nullCaptureDevices;
-	if (mVoiceModule) 
+	LL_DEBUGS("Voice") << "handle " << sessionGroupHandle << LL_ENDL;
+	
+#if USE_SESSION_GROUPS
+	if(mMainSessionGroupHandle.empty())
 	{
-		return mVoiceModule->getCaptureDevices();
+		// This is the first (i.e. "main") session group.  Save its handle.
+		mMainSessionGroupHandle = sessionGroupHandle;
 	}
 	else
 	{
-		return nullCaptureDevices;
+		LL_DEBUGS("Voice") << "Already had a session group handle " << mMainSessionGroupHandle << LL_ENDL;
+	}
+#endif
+}
+
+void LLVoiceClient::joinedAudioSession(sessionState *session)
+{
+	if(mAudioSession != session)
+	{
+		sessionState *oldSession = mAudioSession;
+
+		mAudioSession = session;
+		mAudioSessionChanged = true;
+
+		// The old session may now need to be deleted.
+		reapSession(oldSession);
+	}
+	
+	// This is the session we're joining.
+	if(getState() == stateJoiningSession)
+	{
+		setState(stateSessionJoined);
+		
+		// SLIM SDK: we don't always receive a participant state change for ourselves when joining a channel now.
+		// Add the current user as a participant here.
+		participantState *participant = session->addParticipant(sipURIFromName(mAccountName));
+		if(participant)
+		{
+			participant->mIsSelf = true;
+			lookupName(participant->mAvatarID);
+
+			LL_INFOS("Voice") << "added self as participant \"" << participant->mAccountName 
+					<< "\" (" << participant->mAvatarID << ")"<< LL_ENDL;
+		}
+		
+		if(!session->mIsChannel)
+		{
+			// this is a p2p session.  Make sure the other end is added as a participant.
+			participantState *participant = session->addParticipant(session->mSIPURI);
+			if(participant)
+			{
+				if(participant->mAvatarIDValid)
+				{
+					lookupName(participant->mAvatarID);
+				}
+				else if(!session->mName.empty())
+				{
+					participant->mDisplayName = session->mName;
+					avatarNameResolved(participant->mAvatarID, session->mName);
+				}
+				
+				// TODO: Question: Do we need to set up mAvatarID/mAvatarIDValid here?
+				LL_INFOS("Voice") << "added caller as participant \"" << participant->mAccountName 
+						<< "\" (" << participant->mAvatarID << ")"<< LL_ENDL;
+			}
+		}
 	}
 }
 
+void LLVoiceClient::sessionRemovedEvent(
+	std::string &sessionHandle, 
+	std::string &sessionGroupHandle)
+{
+	LL_INFOS("Voice") << "handle " << sessionHandle << LL_ENDL;
+	
+	sessionState *session = findSession(sessionHandle);
+	if(session)
+	{
+		leftAudioSession(session);
+
+		// This message invalidates the session's handle.  Set it to empty.
+		setSessionHandle(session);
+		
+		// This also means that the session's session group is now empty.
+		// Terminate the session group so it doesn't leak.
+		sessionGroupTerminateSendMessage(session);
+		
+		// Reset the media state (we now have no info)
+		session->mMediaStreamState = streamStateUnknown;
+		session->mTextStreamState = streamStateUnknown;
+		
+		// Conditionally delete the session
+		reapSession(session);
+	}
+	else
+	{
+		LL_WARNS("Voice") << "unknown session " << sessionHandle << " removed" << LL_ENDL;
+	}
+}
 
-const LLVoiceDeviceList& LLVoiceClient::getRenderDevices()
+void LLVoiceClient::reapSession(sessionState *session)
 {
-	static LLVoiceDeviceList nullRenderDevices;	
-	if (mVoiceModule) 
+	if(session)
 	{
-		return mVoiceModule->getRenderDevices();
+		if(!session->mHandle.empty())
+		{
+			LL_DEBUGS("Voice") << "NOT deleting session " << session->mSIPURI << " (non-null session handle)" << LL_ENDL;
+		}
+		else if(session->mCreateInProgress)
+		{
+			LL_DEBUGS("Voice") << "NOT deleting session " << session->mSIPURI << " (create in progress)" << LL_ENDL;
+		}
+		else if(session->mMediaConnectInProgress)
+		{
+			LL_DEBUGS("Voice") << "NOT deleting session " << session->mSIPURI << " (connect in progress)" << LL_ENDL;
+		}
+		else if(session == mAudioSession)
+		{
+			LL_DEBUGS("Voice") << "NOT deleting session " << session->mSIPURI << " (it's the current session)" << LL_ENDL;
+		}
+		else if(session == mNextAudioSession)
+		{
+			LL_DEBUGS("Voice") << "NOT deleting session " << session->mSIPURI << " (it's the next session)" << LL_ENDL;
+		}
+		else
+		{
+			// TODO: Question: Should we check for queued text messages here?
+			// We don't have a reason to keep tracking this session, so just delete it.
+			LL_DEBUGS("Voice") << "deleting session " << session->mSIPURI << LL_ENDL;
+			deleteSession(session);
+			session = NULL;
+		}	
 	}
 	else
 	{
-		return nullRenderDevices;
+//		LL_DEBUGS("Voice") << "session is NULL" << LL_ENDL;
+	}
+}
+
+// Returns true if the session seems to indicate we've moved to a region on a different voice server
+bool LLVoiceClient::sessionNeedsRelog(sessionState *session)
+{
+	bool result = false;
+	
+	if(session != NULL)
+	{
+		// Only make this check for spatial channels (so it won't happen for group or p2p calls)
+		if(session->mIsSpatial)
+		{
+			std::string::size_type atsign;
+			
+			atsign = session->mSIPURI.find("@");
+			
+			if(atsign != std::string::npos)
+			{
+				std::string urihost = session->mSIPURI.substr(atsign + 1);
+				if(stricmp(urihost.c_str(), mVoiceSIPURIHostName.c_str()))
+				{
+					// The hostname in this URI is different from what we expect.  This probably means we need to relog.
+					
+					// We could make a ProvisionVoiceAccountRequest and compare the result with the current values of
+					// mVoiceSIPURIHostName and mVoiceAccountServerURI to be really sure, but this is a pretty good indicator.
+					
+					result = true;
+				}
+			}
+		}
+	}
+	
+	return result;
+}
+
+void LLVoiceClient::leftAudioSession(
+	sessionState *session)
+{
+	if(mAudioSession == session)
+	{
+		switch(getState())
+		{
+			case stateJoiningSession:
+			case stateSessionJoined:
+			case stateRunning:
+			case stateLeavingSession:
+			case stateJoinSessionFailed:
+			case stateJoinSessionFailedWaiting:
+				// normal transition
+				LL_DEBUGS("Voice") << "left session " << session->mHandle << " in state " << state2string(getState()) << LL_ENDL;
+				setState(stateSessionTerminated);
+			break;
+			
+			case stateSessionTerminated:
+				// this will happen sometimes -- there are cases where we send the terminate and then go straight to this state.
+				LL_WARNS("Voice") << "left session " << session->mHandle << " in state " << state2string(getState()) << LL_ENDL;
+			break;
+			
+			default:
+				LL_WARNS("Voice") << "unexpected SessionStateChangeEvent (left session) in state " << state2string(getState()) << LL_ENDL;
+				setState(stateSessionTerminated);
+			break;
+		}
 	}
 }
 
+void LLVoiceClient::accountLoginStateChangeEvent(
+		std::string &accountHandle, 
+		int statusCode, 
+		std::string &statusString, 
+		int state)
+{
+	LL_DEBUGS("Voice") << "state is " << state << LL_ENDL;
+	/*
+		According to Mike S., status codes for this event are:
+		login_state_logged_out=0,
+        login_state_logged_in = 1,
+        login_state_logging_in = 2,
+        login_state_logging_out = 3,
+        login_state_resetting = 4,
+        login_state_error=100	
+	*/
+	
+	switch(state)
+	{
+		case 1:
+		if(getState() == stateLoggingIn)
+		{
+			setState(stateLoggedIn);
+		}
+		break;
+
+		case 3:
+			// The user is in the process of logging out.
+			setState(stateLoggingOut);
+		break;
 
-//--------------------------------------------------
-// participants
+		case 0:
+			// The user has been logged out.  
+			setState(stateLoggedOut);
+		break;
+		
+		default:
+			//Used to be a commented out warning
+			LL_DEBUGS("Voice") << "unknown state: " << state << LL_ENDL;
+		break;
+	}
+}
 
-void LLVoiceClient::getParticipantList(std::set<LLUUID> &participants)
+void LLVoiceClient::mediaStreamUpdatedEvent(
+	std::string &sessionHandle, 
+	std::string &sessionGroupHandle, 
+	int statusCode, 
+	std::string &statusString, 
+	int state, 
+	bool incoming)
 {
-	if (mVoiceModule) 
+	sessionState *session = findSession(sessionHandle);
+	
+	LL_DEBUGS("Voice") << "session " << sessionHandle << ", status code " << statusCode << ", string \"" << statusString << "\"" << LL_ENDL;
+	
+	if(session)
 	{
-	  mVoiceModule->getParticipantList(participants);
+		// We know about this session
+		
+		// Save the state for later use
+		session->mMediaStreamState = state;
+		
+		switch(statusCode)
+		{
+			case 0:
+			case 200:
+				// generic success
+				// Don't change the saved error code (it may have been set elsewhere)
+			break;
+			default:
+				// save the status code for later
+				session->mErrorStatusCode = statusCode;
+			break;
+		}
+		
+		switch(state)
+		{
+			case streamStateIdle:
+				// Standard "left audio session"
+				session->mVoiceEnabled = false;
+				session->mMediaConnectInProgress = false;
+				leftAudioSession(session);
+			break;
+
+			case streamStateConnected:
+				session->mVoiceEnabled = true;
+				session->mMediaConnectInProgress = false;
+				joinedAudioSession(session);
+			break;
+			
+			case streamStateRinging:
+				if(incoming)
+				{
+					// Send the voice chat invite to the GUI layer
+					// *TODO: Question: Should we correlate with the mute list here?
+					session->mIMSessionID = LLIMMgr::computeSessionID(IM_SESSION_P2P_INVITE, session->mCallerID);
+					session->mVoiceInvitePending = true;
+					if(session->mName.empty())
+					{
+						lookupName(session->mCallerID);
+					}
+					else
+					{
+						// Act like we just finished resolving the name
+						avatarNameResolved(session->mCallerID, session->mName);
+					}
+				}
+			break;
+			
+			default:
+				LL_WARNS("Voice") << "unknown state " << state << LL_ENDL;
+			break;
+			
+		}
+		
 	}
 	else
 	{
-	  participants = std::set<LLUUID>();
+		LL_WARNS("Voice") << "session " << sessionHandle << "not found"<< LL_ENDL;
 	}
 }
 
-bool LLVoiceClient::isParticipant(const LLUUID &speaker_id)
+void LLVoiceClient::textStreamUpdatedEvent(
+	std::string &sessionHandle, 
+	std::string &sessionGroupHandle, 
+	bool enabled,
+	int state, 
+	bool incoming)
 {
-  if(mVoiceModule)
-    {
-      return mVoiceModule->isParticipant(speaker_id);
-    }
-  return false;
+	sessionState *session = findSession(sessionHandle);
+	
+	if(session)
+	{
+		// Save the state for later use
+		session->mTextStreamState = state;
+		
+		// We know about this session
+		switch(state)
+		{
+			case 0:	// We see this when the text stream closes
+				LL_DEBUGS("Voice") << "stream closed" << LL_ENDL;
+			break;
+			
+			case 1:	// We see this on an incoming call from the Connector
+				// Try to send any text messages queued for this session.
+				sendQueuedTextMessages(session);
+
+				// Send the text chat invite to the GUI layer
+				// TODO: Question: Should we correlate with the mute list here?
+				session->mTextInvitePending = true;
+				if(session->mName.empty())
+				{
+					lookupName(session->mCallerID);
+				}
+				else
+				{
+					// Act like we just finished resolving the name
+					avatarNameResolved(session->mCallerID, session->mName);
+				}
+			break;
+
+			default:
+				LL_WARNS("Voice") << "unknown state " << state << LL_ENDL;
+			break;
+			
+		}
+	}
 }
 
+void LLVoiceClient::participantAddedEvent(
+		std::string &sessionHandle, 
+		std::string &sessionGroupHandle, 
+		std::string &uriString, 
+		std::string &alias, 
+		std::string &nameString, 
+		std::string &displayNameString, 
+		int participantType)
+{
+	sessionState *session = findSession(sessionHandle);
+	if(session)
+	{
+		participantState *participant = session->addParticipant(uriString);
+		if(participant)
+		{
+			participant->mAccountName = nameString;
 
-//--------------------------------------------------
-// text chat
+			LL_DEBUGS("Voice") << "added participant \"" << participant->mAccountName 
+					<< "\" (" << participant->mAvatarID << ")"<< LL_ENDL;
 
+			if(participant->mAvatarIDValid)
+			{
+				// Initiate a lookup
+				lookupName(participant->mAvatarID);
+			}
+			else
+			{
+				// If we don't have a valid avatar UUID, we need to fill in the display name to make the active speakers floater work.
+				std::string namePortion = nameFromsipURI(uriString);
+				if(namePortion.empty())
+				{
+					// Problem with the SIP URI, fall back to the display name
+					namePortion = displayNameString;
+				}
+				if(namePortion.empty())
+				{
+					// Problems with both of the above, fall back to the account name
+					namePortion = nameString;
+				}
+				
+				// Set the display name (which is a hint to the active speakers window not to do its own lookup)
+				participant->mDisplayName = namePortion;
+				avatarNameResolved(participant->mAvatarID, namePortion);
+			}
+		}
+	}
+}
 
-BOOL LLVoiceClient::isSessionTextIMPossible(const LLUUID& id)
+void LLVoiceClient::participantRemovedEvent(
+		std::string &sessionHandle, 
+		std::string &sessionGroupHandle, 
+		std::string &uriString, 
+		std::string &alias, 
+		std::string &nameString)
 {
-	if (mVoiceModule) 
+	sessionState *session = findSession(sessionHandle);
+	if(session)
 	{
-		return mVoiceModule->isSessionTextIMPossible(id);
+		participantState *participant = session->findParticipant(uriString);
+		if(participant)
+		{
+			session->removeParticipant(participant);
+		}
+		else
+		{
+			LL_DEBUGS("Voice") << "unknown participant " << uriString << LL_ENDL;
+		}
 	}
 	else
 	{
-		return FALSE;
-	}	
+		LL_DEBUGS("Voice") << "unknown session " << sessionHandle << LL_ENDL;
+	}
 }
 
-BOOL LLVoiceClient::isSessionCallBackPossible(const LLUUID& id)
+
+void LLVoiceClient::participantUpdatedEvent(
+		std::string &sessionHandle, 
+		std::string &sessionGroupHandle, 
+		std::string &uriString, 
+		std::string &alias, 
+		bool isModeratorMuted, 
+		bool isSpeaking, 
+		int volume, 
+		F32 energy)
 {
-	if (mVoiceModule) 
+	sessionState *session = findSession(sessionHandle);
+	if(session)
 	{
-		return mVoiceModule->isSessionCallBackPossible(id);
+		participantState *participant = session->findParticipant(uriString);
+		
+		if(participant)
+		{
+			participant->mIsSpeaking = isSpeaking;
+			participant->mIsModeratorMuted = isModeratorMuted;
+
+			// SLIM SDK: convert range: ensure that energy is set to zero if is_speaking is false
+			if (isSpeaking)
+			{
+				participant->mSpeakingTimeout.reset();
+				participant->mPower = energy;
+			}
+			else
+			{
+				participant->mPower = 0.0f;
+			}
+
+			// Ignore incoming volume level if it has been explicitly set, or there
+			//  is a volume or mute change pending.
+			if ( !participant->mVolumeSet && !participant->mVolumeDirty)
+			{
+				participant->mVolume = (F32)volume * VOLUME_SCALE_VIVOX;
+			}
+
+			// *HACK: mantipov: added while working on EXT-3544
+			/*
+			Sometimes LLVoiceClient::participantUpdatedEvent callback is called BEFORE 
+			LLViewerChatterBoxSessionAgentListUpdates::post() sometimes AFTER.
+			
+			participantUpdatedEvent updates voice participant state in particular participantState::mIsModeratorMuted
+			Originally we wanted to update session Speaker Manager to fire LLSpeakerVoiceModerationEvent to fix the EXT-3544 bug.
+			Calling of the LLSpeakerMgr::update() method was added into LLIMMgr::processAgentListUpdates.
+			
+			But in case participantUpdatedEvent() is called after LLViewerChatterBoxSessionAgentListUpdates::post()
+			voice participant mIsModeratorMuted is changed after speakers are updated in Speaker Manager
+			and event is not fired.
+
+			So, we have to call LLSpeakerMgr::update() here. In any case it is better than call it
+			in LLCallFloater::draw()
+			*/
+			LLVoiceChannel* voice_cnl = LLVoiceChannel::getCurrentVoiceChannel();
+
+			// ignore session ID of local chat
+			if (voice_cnl && voice_cnl->getSessionID().notNull())
+			{
+				LLSpeakerMgr* speaker_manager = LLIMModel::getInstance()->getSpeakerManager(voice_cnl->getSessionID());
+				if (speaker_manager)
+				{
+					speaker_manager->update(true);
+				}
+			}
+		}
+		else
+		{
+			LL_WARNS("Voice") << "unknown participant: " << uriString << LL_ENDL;
+		}
 	}
 	else
 	{
-		return FALSE;
-	}	
+		LL_INFOS("Voice") << "unknown session " << sessionHandle << LL_ENDL;
+	}
 }
 
-BOOL LLVoiceClient::sendTextMessage(const LLUUID& participant_id, const std::string& message)
+void LLVoiceClient::buddyPresenceEvent(
+		std::string &uriString, 
+		std::string &alias, 
+		std::string &statusString,
+		std::string &applicationString)
 {
-	if (mVoiceModule) 
+	buddyListEntry *buddy = findBuddy(uriString);
+	
+	if(buddy)
 	{
-		return mVoiceModule->sendTextMessage(participant_id, message);
+		LL_DEBUGS("Voice") << "Presence event for " << buddy->mDisplayName << " status \"" << statusString << "\", application \"" << applicationString << "\""<< LL_ENDL;
+		LL_DEBUGS("Voice") << "before: mOnlineSL = " << (buddy->mOnlineSL?"true":"false") << ", mOnlineSLim = " << (buddy->mOnlineSLim?"true":"false") << LL_ENDL;
+
+		if(applicationString.empty())
+		{
+			// This presence event is from a client that doesn't set up the Application string.  Do things the old-skool way.
+			// NOTE: this will be needed to support people who aren't on the 3010-class SDK yet.
+
+			if ( stricmp("Unknown", statusString.c_str())== 0) 
+			{
+				// User went offline with a non-SLim-enabled viewer.
+				buddy->mOnlineSL = false;
+			}
+			else if ( stricmp("Online", statusString.c_str())== 0) 
+			{
+				// User came online with a non-SLim-enabled viewer.
+				buddy->mOnlineSL = true;
+			}
+			else
+			{
+				// If the user is online through SLim, their status will be "Online-slc", "Away", or something else.
+				// NOTE: we should never see this unless someone is running an OLD version of SLim -- the versions that should be in use now all set the application string.
+				buddy->mOnlineSLim = true;
+			} 
+		}
+		else if(applicationString.find("SecondLifeViewer") != std::string::npos)
+		{
+			// This presence event is from a viewer that sets the application string
+			if ( stricmp("Unknown", statusString.c_str())== 0) 
+			{
+				// Viewer says they're offline
+				buddy->mOnlineSL = false;
+			}
+			else
+			{
+				// Viewer says they're online
+				buddy->mOnlineSL = true;
+			}
+		}
+		else
+		{
+			// This presence event is from something which is NOT the SL viewer (assume it's SLim).
+			if ( stricmp("Unknown", statusString.c_str())== 0) 
+			{
+				// SLim says they're offline
+				buddy->mOnlineSLim = false;
+			}
+			else
+			{
+				// SLim says they're online
+				buddy->mOnlineSLim = true;
+			}
+		} 
+
+		LL_DEBUGS("Voice") << "after: mOnlineSL = " << (buddy->mOnlineSL?"true":"false") << ", mOnlineSLim = " << (buddy->mOnlineSLim?"true":"false") << LL_ENDL;
+		
+		// HACK -- increment the internal change serial number in the LLRelationship (without changing the actual status), so the UI notices the change.
+		LLAvatarTracker::instance().setBuddyOnline(buddy->mUUID,LLAvatarTracker::instance().isBuddyOnline(buddy->mUUID));
+
+		notifyFriendObservers();
 	}
 	else
 	{
-		return FALSE;
+		LL_DEBUGS("Voice") << "Presence for unknown buddy " << uriString << LL_ENDL;
 	}	
 }
 
-void LLVoiceClient::endUserIMSession(const LLUUID& participant_id)
+void LLVoiceClient::messageEvent(
+		std::string &sessionHandle, 
+		std::string &uriString, 
+		std::string &alias, 
+		std::string &messageHeader, 
+		std::string &messageBody,
+		std::string &applicationString)
 {
-	if (mVoiceModule) 
+	LL_DEBUGS("Voice") << "Message event, session " << sessionHandle << " from " << uriString << LL_ENDL;
+//	LL_DEBUGS("Voice") << "    header " << messageHeader << ", body: \n" << messageBody << LL_ENDL;
+	
+	if(messageHeader.find("text/html") != std::string::npos)
 	{
-		mVoiceModule->endUserIMSession(participant_id);
+		std::string message;
+
+		{
+			const std::string startMarker = "<body";
+			const std::string startMarker2 = ">";
+			const std::string endMarker = "</body>";
+			const std::string startSpan = "<span";
+			const std::string endSpan = "</span>";
+			std::string::size_type start;
+			std::string::size_type end;
+			
+			// Default to displaying the raw string, so the message gets through.
+			message = messageBody;
+
+			// Find the actual message text within the XML fragment
+			start = messageBody.find(startMarker);
+			start = messageBody.find(startMarker2, start);
+			end = messageBody.find(endMarker);
+
+			if(start != std::string::npos)
+			{
+				start += startMarker2.size();
+				
+				if(end != std::string::npos)
+					end -= start;
+					
+				message.assign(messageBody, start, end);
+			}
+			else 
+			{
+				// Didn't find a <body>, try looking for a <span> instead.
+				start = messageBody.find(startSpan);
+				start = messageBody.find(startMarker2, start);
+				end = messageBody.find(endSpan);
+				
+				if(start != std::string::npos)
+				{
+					start += startMarker2.size();
+					
+					if(end != std::string::npos)
+						end -= start;
+					
+					message.assign(messageBody, start, end);
+				}			
+			}
+		}	
+		
+//		LL_DEBUGS("Voice") << "    raw message = \n" << message << LL_ENDL;
+
+		// strip formatting tags
+		{
+			std::string::size_type start;
+			std::string::size_type end;
+			
+			while((start = message.find('<')) != std::string::npos)
+			{
+				if((end = message.find('>', start + 1)) != std::string::npos)
+				{
+					// Strip out the tag
+					message.erase(start, (end + 1) - start);
+				}
+				else
+				{
+					// Avoid an infinite loop
+					break;
+				}
+			}
+		}
+		
+		// Decode ampersand-escaped chars
+		{
+			std::string::size_type mark = 0;
+
+			// The text may contain text encoded with &lt;, &gt;, and &amp;
+			mark = 0;
+			while((mark = message.find("&lt;", mark)) != std::string::npos)
+			{
+				message.replace(mark, 4, "<");
+				mark += 1;
+			}
+			
+			mark = 0;
+			while((mark = message.find("&gt;", mark)) != std::string::npos)
+			{
+				message.replace(mark, 4, ">");
+				mark += 1;
+			}
+			
+			mark = 0;
+			while((mark = message.find("&amp;", mark)) != std::string::npos)
+			{
+				message.replace(mark, 5, "&");
+				mark += 1;
+			}
+		}
+		
+		// strip leading/trailing whitespace (since we always seem to get a couple newlines)
+		LLStringUtil::trim(message);
+		
+//		LL_DEBUGS("Voice") << "    stripped message = \n" << message << LL_ENDL;
+		
+		sessionState *session = findSession(sessionHandle);
+		if(session)
+		{
+			bool is_busy = gAgent.getBusy();
+			bool is_muted = LLMuteList::getInstance()->isMuted(session->mCallerID, session->mName, LLMute::flagTextChat);
+			bool is_linden = LLMuteList::getInstance()->isLinden(session->mName);
+			bool quiet_chat = false;
+			LLChat chat;
+
+			chat.mMuted = is_muted && !is_linden;
+			
+			if(!chat.mMuted)
+			{
+				chat.mFromID = session->mCallerID;
+				chat.mFromName = session->mName;
+				chat.mSourceType = CHAT_SOURCE_AGENT;
+
+				if(is_busy && !is_linden)
+				{
+					quiet_chat = true;
+					// TODO: Question: Return busy mode response here?  Or maybe when session is started instead?
+				}
+								
+				LL_DEBUGS("Voice") << "adding message, name " << session->mName << " session " << session->mIMSessionID << ", target " << session->mCallerID << LL_ENDL;
+				gIMMgr->addMessage(session->mIMSessionID,
+						session->mCallerID,
+						session->mName.c_str(),
+						message.c_str(),
+						LLStringUtil::null,		// default arg
+						IM_NOTHING_SPECIAL,		// default arg
+						0,						// default arg
+						LLUUID::null,			// default arg
+						LLVector3::zero,		// default arg
+						true);					// prepend name and make it a link to the user's profile
+			}
+		}		
 	}
 }
 
-//----------------------------------------------
-// channels
+void LLVoiceClient::sessionNotificationEvent(std::string &sessionHandle, std::string &uriString, std::string &notificationType)
+{
+	sessionState *session = findSession(sessionHandle);
+	
+	if(session)
+	{
+		participantState *participant = session->findParticipant(uriString);
+		if(participant)
+		{
+			if (!stricmp(notificationType.c_str(), "Typing"))
+			{
+				// Other end started typing
+				// TODO: The proper way to add a typing notification seems to be LLIMMgr::processIMTypingStart().
+				// It requires an LLIMInfo for the message, which we don't have here.
+			}
+			else if (!stricmp(notificationType.c_str(), "NotTyping"))
+			{
+				// Other end stopped typing
+				// TODO: The proper way to remove a typing notification seems to be LLIMMgr::processIMTypingStop().
+				// It requires an LLIMInfo for the message, which we don't have here.
+			}
+			else
+			{
+				LL_DEBUGS("Voice") << "Unknown notification type " << notificationType << "for participant " << uriString << " in session " << session->mSIPURI << LL_ENDL;
+			}
+		}
+		else
+		{
+			LL_DEBUGS("Voice") << "Unknown participant " << uriString << " in session " << session->mSIPURI << LL_ENDL;
+		}
+	}
+	else
+	{
+		LL_DEBUGS("Voice") << "Unknown session handle " << sessionHandle << LL_ENDL;
+	}
+}
 
-bool LLVoiceClient::inProximalChannel()
+void LLVoiceClient::subscriptionEvent(std::string &buddyURI, std::string &subscriptionHandle, std::string &alias, std::string &displayName, std::string &applicationString, std::string &subscriptionType)
 {
-	if (mVoiceModule) 
+	buddyListEntry *buddy = findBuddy(buddyURI);
+	
+	if(!buddy)
 	{
-		return mVoiceModule->inProximalChannel();
+		// Couldn't find buddy by URI, try converting the alias...
+		if(!alias.empty())
+		{
+			LLUUID id;
+			if(IDFromName(alias, id))
+			{
+				buddy = findBuddy(id);
+			}
+		}
+	}
+	
+	if(buddy)
+	{
+		std::ostringstream stream;
+		
+		if(buddy->mCanSeeMeOnline)
+		{
+			// Sending the response will create an auto-accept rule
+			buddy->mHasAutoAcceptListEntry = true;
+		}
+		else
+		{
+			// Sending the response will create a block rule
+			buddy->mHasBlockListEntry = true;
+		}
+		
+		if(buddy->mInSLFriends)
+		{
+			buddy->mInVivoxBuddies = true;
+		}
+		
+		stream
+			<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Account.SendSubscriptionReply.1\">"
+				<< "<AccountHandle>" << mAccountHandle << "</AccountHandle>"
+				<< "<BuddyURI>" << buddy->mURI << "</BuddyURI>"
+				<< "<RuleType>" << (buddy->mCanSeeMeOnline?"Allow":"Hide") << "</RuleType>"
+				<< "<AutoAccept>"<< (buddy->mInSLFriends?"1":"0")<< "</AutoAccept>"
+				<< "<SubscriptionHandle>" << subscriptionHandle << "</SubscriptionHandle>"
+			<< "</Request>"
+			<< "\n\n\n";
+			
+		writeString(stream.str());
+	}
+}
+
+void LLVoiceClient::auxAudioPropertiesEvent(F32 energy)
+{
+	LL_DEBUGS("Voice") << "got energy " << energy << LL_ENDL;
+	mTuningEnergy = energy;
+}
+
+void LLVoiceClient::buddyListChanged()
+{
+	// This is called after we receive a BuddyAndGroupListChangedEvent.
+	mBuddyListMapPopulated = true;
+	mFriendsListDirty = true;
+}
+
+void LLVoiceClient::muteListChanged()
+{
+	// The user's mute list has been updated.  Go through the current participant list and sync it with the mute list.
+	if(mAudioSession)
+	{
+		participantMap::iterator iter = mAudioSession->mParticipantsByURI.begin();
+		
+		for(; iter != mAudioSession->mParticipantsByURI.end(); iter++)
+		{
+			participantState *p = iter->second;
+			
+			// Check to see if this participant is on the mute list already
+			if(p->updateMuteState())
+				mAudioSession->mMuteDirty = true;
+		}
+	}
+}
+
+void LLVoiceClient::updateFriends(U32 mask)
+{
+	if(mask & (LLFriendObserver::ADD | LLFriendObserver::REMOVE | LLFriendObserver::POWERS))
+	{
+		// Just resend the whole friend list to the daemon
+		mFriendsListDirty = true;
+	}
+}
+
+/////////////////////////////
+// Managing list of participants
+LLVoiceClient::participantState::participantState(const std::string &uri) : 
+	 mURI(uri), 
+	 mPTT(false), 
+	 mIsSpeaking(false), 
+	 mIsModeratorMuted(false), 
+	 mLastSpokeTimestamp(0.f), 
+	 mPower(0.f), 
+	 mVolume(VOLUME_DEFAULT),
+	 mOnMuteList(false),
+	 mVolumeSet(false),
+	 mVolumeDirty(false),
+	 mAvatarIDValid(false),
+	 mIsSelf(false)
+{
+}
+
+LLVoiceClient::participantState *LLVoiceClient::sessionState::addParticipant(const std::string &uri)
+{
+	participantState *result = NULL;
+	bool useAlternateURI = false;
+	
+	// Note: this is mostly the body of LLVoiceClient::sessionState::findParticipant(), but since we need to know if it
+	// matched the alternate SIP URI (so we can add it properly), we need to reproduce it here.
+	{
+		participantMap::iterator iter = mParticipantsByURI.find(&uri);
+
+		if(iter == mParticipantsByURI.end())
+		{
+			if(!mAlternateSIPURI.empty() && (uri == mAlternateSIPURI))
+			{
+				// This is a p2p session (probably with the SLIM client) with an alternate URI for the other participant.
+				// Use mSIPURI instead, since it will be properly encoded.
+				iter = mParticipantsByURI.find(&(mSIPURI));
+				useAlternateURI = true;
+			}
+		}
+
+		if(iter != mParticipantsByURI.end())
+		{
+			result = iter->second;
+		}
+	}
+		
+	if(!result)
+	{
+		// participant isn't already in one list or the other.
+		result = new participantState(useAlternateURI?mSIPURI:uri);
+		mParticipantsByURI.insert(participantMap::value_type(&(result->mURI), result));
+		mParticipantsChanged = true;
+		
+		// Try to do a reverse transform on the URI to get the GUID back.
+		{
+			LLUUID id;
+			if(IDFromName(result->mURI, id))
+			{
+				result->mAvatarIDValid = true;
+				result->mAvatarID = id;
+
+				if(result->updateMuteState())
+					mMuteDirty = true;
+			}
+			else
+			{
+				// Create a UUID by hashing the URI, but do NOT set mAvatarIDValid.
+				// This tells both code in LLVoiceClient and code in llfloateractivespeakers.cpp that the ID will not be in the name cache.
+				setUUIDFromStringHash(result->mAvatarID, uri);
+			}
+		}
+		
+		mParticipantsByUUID.insert(participantUUIDMap::value_type(&(result->mAvatarID), result));
+
+		if (LLSpeakerVolumeStorage::getInstance()->getSpeakerVolume(result->mAvatarID, result->mVolume))
+		{
+			result->mVolumeDirty = true;
+			mVolumeDirty = true;
+		}
+
+		LL_DEBUGS("Voice") << "participant \"" << result->mURI << "\" added." << LL_ENDL;
+	}
+	
+	return result;
+}
+
+bool LLVoiceClient::participantState::updateMuteState()
+{
+	bool result = false;
+	
+	if(mAvatarIDValid)
+	{
+		bool isMuted = LLMuteList::getInstance()->isMuted(mAvatarID, LLMute::flagVoiceChat);
+		if(mOnMuteList != isMuted)
+		{
+			mOnMuteList = isMuted;
+			mVolumeDirty = true;
+			result = true;
+		}
+	}
+	return result;
+}
+
+bool LLVoiceClient::participantState::isAvatar()
+{
+	return mAvatarIDValid;
+}
+
+void LLVoiceClient::sessionState::removeParticipant(LLVoiceClient::participantState *participant)
+{
+	if(participant)
+	{
+		participantMap::iterator iter = mParticipantsByURI.find(&(participant->mURI));
+		participantUUIDMap::iterator iter2 = mParticipantsByUUID.find(&(participant->mAvatarID));
+		
+		LL_DEBUGS("Voice") << "participant \"" << participant->mURI <<  "\" (" << participant->mAvatarID << ") removed." << LL_ENDL;
+		
+		if(iter == mParticipantsByURI.end())
+		{
+			LL_ERRS("Voice") << "Internal error: participant " << participant->mURI << " not in URI map" << LL_ENDL;
+		}
+		else if(iter2 == mParticipantsByUUID.end())
+		{
+			LL_ERRS("Voice") << "Internal error: participant ID " << participant->mAvatarID << " not in UUID map" << LL_ENDL;
+		}
+		else if(iter->second != iter2->second)
+		{
+			LL_ERRS("Voice") << "Internal error: participant mismatch!" << LL_ENDL;
+		}
+		else
+		{
+			mParticipantsByURI.erase(iter);
+			mParticipantsByUUID.erase(iter2);
+			
+			delete participant;
+			mParticipantsChanged = true;
+		}
+	}
+}
+
+void LLVoiceClient::sessionState::removeAllParticipants()
+{
+	LL_DEBUGS("Voice") << "called" << LL_ENDL;
+
+	while(!mParticipantsByURI.empty())
+	{
+		removeParticipant(mParticipantsByURI.begin()->second);
+	}
+	
+	if(!mParticipantsByUUID.empty())
+	{
+		LL_ERRS("Voice") << "Internal error: empty URI map, non-empty UUID map" << LL_ENDL;
+	}
+}
+
+LLVoiceClient::participantMap *LLVoiceClient::getParticipantList(void)
+{
+	participantMap *result = NULL;
+	if(mAudioSession)
+	{
+		result = &(mAudioSession->mParticipantsByURI);
+	}
+	return result;
+}
+
+void LLVoiceClient::getParticipantsUUIDSet(std::set<LLUUID>& participant_uuids)
+{
+	if (NULL == mAudioSession) return;
+
+	participantUUIDMap::const_iterator it = mAudioSession->mParticipantsByUUID.begin(),
+		it_end = mAudioSession->mParticipantsByUUID.end();
+	for (; it != it_end; ++it)
+	{
+		participant_uuids.insert((*(*it).first));
+	}
+}
+
+LLVoiceClient::participantState *LLVoiceClient::sessionState::findParticipant(const std::string &uri)
+{
+	participantState *result = NULL;
+	
+	participantMap::iterator iter = mParticipantsByURI.find(&uri);
+
+	if(iter == mParticipantsByURI.end())
+	{
+		if(!mAlternateSIPURI.empty() && (uri == mAlternateSIPURI))
+		{
+			// This is a p2p session (probably with the SLIM client) with an alternate URI for the other participant.
+			// Look up the other URI
+			iter = mParticipantsByURI.find(&(mSIPURI));
+		}
+	}
+
+	if(iter != mParticipantsByURI.end())
+	{
+		result = iter->second;
+	}
+		
+	return result;
+}
+
+LLVoiceClient::participantState* LLVoiceClient::sessionState::findParticipantByID(const LLUUID& id)
+{
+	participantState * result = NULL;
+	participantUUIDMap::iterator iter = mParticipantsByUUID.find(&id);
+
+	if(iter != mParticipantsByUUID.end())
+	{
+		result = iter->second;
+	}
+
+	return result;
+}
+
+LLVoiceClient::participantState* LLVoiceClient::findParticipantByID(const LLUUID& id)
+{
+	participantState * result = NULL;
+	
+	if(mAudioSession)
+	{
+		result = mAudioSession->findParticipantByID(id);
+	}
+	
+	return result;
+}
+
+
+void LLVoiceClient::parcelChanged()
+{
+	if(getState() >= stateNoChannel)
+	{
+		// If the user is logged in, start a channel lookup.
+		LL_DEBUGS("Voice") << "sending ParcelVoiceInfoRequest (" << mCurrentRegionName << ", " << mCurrentParcelLocalID << ")" << LL_ENDL;
+
+		std::string url = gAgent.getRegion()->getCapability("ParcelVoiceInfoRequest");
+		LLSD data;
+		LLHTTPClient::post(
+			url,
+			data,
+			new LLVoiceClientCapResponder);
 	}
 	else
 	{
-		return false;
+		// The transition to stateNoChannel needs to kick this off again.
+		LL_INFOS("Voice") << "not logged in yet, deferring" << LL_ENDL;
+	}
+}
+
+void LLVoiceClient::switchChannel(
+	std::string uri,
+	bool spatial,
+	bool no_reconnect,
+	bool is_p2p,
+	std::string hash)
+{
+	bool needsSwitch = false;
+	
+	LL_DEBUGS("Voice") 
+		<< "called in state " << state2string(getState()) 
+		<< " with uri \"" << uri << "\"" 
+		<< (spatial?", spatial is true":", spatial is false")
+		<< LL_ENDL;
+	
+	switch(getState())
+	{
+		case stateJoinSessionFailed:
+		case stateJoinSessionFailedWaiting:
+		case stateNoChannel:
+			// Always switch to the new URI from these states.
+			needsSwitch = true;
+		break;
+
+		default:
+			if(mSessionTerminateRequested)
+			{
+				// If a terminate has been requested, we need to compare against where the URI we're already headed to.
+				if(mNextAudioSession)
+				{
+					if(mNextAudioSession->mSIPURI != uri)
+						needsSwitch = true;
+				}
+				else
+				{
+					// mNextAudioSession is null -- this probably means we're on our way back to spatial.
+					if(!uri.empty())
+					{
+						// We do want to process a switch in this case.
+						needsSwitch = true;
+					}
+				}
+			}
+			else
+			{
+				// Otherwise, compare against the URI we're in now.
+				if(mAudioSession)
+				{
+					if(mAudioSession->mSIPURI != uri)
+					{
+						needsSwitch = true;
+					}
+				}
+				else
+				{
+					if(!uri.empty())
+					{
+						// mAudioSession is null -- it's not clear what case would cause this.
+						// For now, log it as a warning and see if it ever crops up.
+						LL_WARNS("Voice") << "No current audio session." << LL_ENDL;
+					}
+				}
+			}
+		break;
+	}
+	
+	if(needsSwitch)
+	{
+		if(uri.empty())
+		{
+			// Leave any channel we may be in
+			LL_DEBUGS("Voice") << "leaving channel" << LL_ENDL;
+
+			sessionState *oldSession = mNextAudioSession;
+			mNextAudioSession = NULL;
+
+			// The old session may now need to be deleted.
+			reapSession(oldSession);
+
+			notifyStatusObservers(LLVoiceClientStatusObserver::STATUS_VOICE_DISABLED);
+		}
+		else
+		{
+			LL_DEBUGS("Voice") << "switching to channel " << uri << LL_ENDL;
+
+			mNextAudioSession = addSession(uri);
+			mNextAudioSession->mHash = hash;
+			mNextAudioSession->mIsSpatial = spatial;
+			mNextAudioSession->mReconnect = !no_reconnect;
+			mNextAudioSession->mIsP2P = is_p2p;
+		}
+		
+		if(getState() <= stateNoChannel)
+		{
+			// We're already set up to join a channel, just needed to fill in the session URI
+		}
+		else
+		{
+			// State machine will come around and rejoin if uri/handle is not empty.
+			sessionTerminate();
+		}
+	}
+}
+
+void LLVoiceClient::joinSession(sessionState *session)
+{
+	mNextAudioSession = session;
+	
+	if(getState() <= stateNoChannel)
+	{
+		// We're already set up to join a channel, just needed to fill in the session handle
+	}
+	else
+	{
+		// State machine will come around and rejoin if uri/handle is not empty.
+		sessionTerminate();
 	}
 }
 
@@ -344,417 +5454,1822 @@ void LLVoiceClient::setNonSpatialChannel(
 	const std::string &uri,
 	const std::string &credentials)
 {
-	if (mVoiceModule) mVoiceModule->setNonSpatialChannel(uri, credentials);
+	switchChannel(uri, false, false, false, credentials);
 }
 
 void LLVoiceClient::setSpatialChannel(
 	const std::string &uri,
 	const std::string &credentials)
 {
-	if (mVoiceModule) mVoiceModule->setSpatialChannel(uri, credentials);
+	mSpatialSessionURI = uri;
+	mSpatialSessionCredentials = credentials;
+	mAreaVoiceDisabled = mSpatialSessionURI.empty();
+
+	LL_DEBUGS("Voice") << "got spatial channel uri: \"" << uri << "\"" << LL_ENDL;
+	
+	if((mAudioSession && !(mAudioSession->mIsSpatial)) || (mNextAudioSession && !(mNextAudioSession->mIsSpatial)))
+	{
+		// User is in a non-spatial chat or joining a non-spatial chat.  Don't switch channels.
+		LL_INFOS("Voice") << "in non-spatial chat, not switching channels" << LL_ENDL;
+	}
+	else
+	{
+		switchChannel(mSpatialSessionURI, true, false, false, mSpatialSessionCredentials);
+	}
 }
 
-void LLVoiceClient::leaveNonSpatialChannel()
+void LLVoiceClient::callUser(const LLUUID &uuid)
 {
-	if (mVoiceModule) mVoiceModule->leaveNonSpatialChannel();
+	std::string userURI = sipURIFromID(uuid);
+
+	switchChannel(userURI, false, true, true);
 }
 
-void LLVoiceClient::leaveChannel(void)
+LLVoiceClient::sessionState* LLVoiceClient::startUserIMSession(const LLUUID &uuid)
 {
-	if (mVoiceModule) mVoiceModule->leaveChannel();
+	// Figure out if a session with the user already exists
+	sessionState *session = findSession(uuid);
+	if(!session)
+	{
+		// No session with user, need to start one.
+		std::string uri = sipURIFromID(uuid);
+		session = addSession(uri);
+
+		llassert(session);
+		if (!session) return NULL;
+
+		session->mIsSpatial = false;
+		session->mReconnect = false;	
+		session->mIsP2P = true;
+		session->mCallerID = uuid;
+	}
+	
+	if(session->mHandle.empty())
+	{
+		// Session isn't active -- start it up.
+		sessionCreateSendMessage(session, false, true);
+	}
+	else
+	{	
+		// Session is already active -- start up text.
+		sessionTextConnectSendMessage(session);
+	}
+	
+	return session;
 }
 
-std::string LLVoiceClient::getCurrentChannel()
+bool LLVoiceClient::sendTextMessage(const LLUUID& participant_id, const std::string& message)
+{
+	bool result = false;
+
+	// Attempt to locate the indicated session
+	sessionState *session = startUserIMSession(participant_id);
+	if(session)
+	{
+		// found the session, attempt to send the message
+		session->mTextMsgQueue.push(message);
+		
+		// Try to send queued messages (will do nothing if the session is not open yet)
+		sendQueuedTextMessages(session);
+
+		// The message is queued, so we succeed.
+		result = true;
+	}	
+	else
+	{
+		LL_DEBUGS("Voice") << "Session not found for participant ID " << participant_id << LL_ENDL;
+	}
+	
+	return result;
+}
+
+void LLVoiceClient::sendQueuedTextMessages(sessionState *session)
 {
-	if (mVoiceModule) 
+	if(session->mTextStreamState == 1)
 	{
-		return mVoiceModule->getCurrentChannel();
+		if(!session->mTextMsgQueue.empty())
+		{
+			std::ostringstream stream;
+			
+			while(!session->mTextMsgQueue.empty())
+			{
+				std::string message = session->mTextMsgQueue.front();
+				session->mTextMsgQueue.pop();
+				stream
+				<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"Session.SendMessage.1\">"
+					<< "<SessionHandle>" << session->mHandle << "</SessionHandle>"
+					<< "<MessageHeader>text/HTML</MessageHeader>"
+					<< "<MessageBody>" << message << "</MessageBody>"
+				<< "</Request>"
+				<< "\n\n\n";
+			}		
+			writeString(stream.str());
+		}
 	}
 	else
 	{
-		return std::string();
+		// Session isn't connected yet, defer until later.
 	}
 }
 
+void LLVoiceClient::endUserIMSession(const LLUUID &uuid)
+{
+	// Figure out if a session with the user exists
+	sessionState *session = findSession(uuid);
+	if(session)
+	{
+		// found the session
+		if(!session->mHandle.empty())
+		{
+			sessionTextDisconnectSendMessage(session);
+		}
+	}	
+	else
+	{
+		LL_DEBUGS("Voice") << "Session not found for participant ID " << uuid << LL_ENDL;
+	}
+}
 
-//---------------------------------------
-// invitations
+bool LLVoiceClient::answerInvite(std::string &sessionHandle)
+{
+	// this is only ever used to answer incoming p2p call invites.
+	
+	sessionState *session = findSession(sessionHandle);
+	if(session)
+	{
+		session->mIsSpatial = false;
+		session->mReconnect = false;	
+		session->mIsP2P = true;
 
-void LLVoiceClient::callUser(const LLUUID &uuid)
+		joinSession(session);
+		return true;
+	}
+	
+	return false;
+}
+
+bool LLVoiceClient::isOnlineSIP(const LLUUID &id)
 {
-	if (mVoiceModule) mVoiceModule->callUser(uuid);
+	bool result = false;
+	buddyListEntry *buddy = findBuddy(id);
+	if(buddy)
+	{
+		result = buddy->mOnlineSLim;
+		LL_DEBUGS("Voice") << "Buddy " << buddy->mDisplayName << " is SIP " << (result?"online":"offline") << LL_ENDL;
+	}
+
+	if(!result)
+	{
+		// This user isn't on the buddy list or doesn't show online status through the buddy list, but could be a participant in an existing session if they initiated a text IM.
+		sessionState *session = findSession(id);
+		if(session && !session->mHandle.empty())
+		{
+			if((session->mTextStreamState != streamStateUnknown) || (session->mMediaStreamState > streamStateIdle))
+			{
+				LL_DEBUGS("Voice") << "Open session with " << id << " found, returning SIP online state" << LL_ENDL;
+				// we have a p2p text session open with this user, so by definition they're online.
+				result = true;
+			}
+		}
+	}
+	
+	return result;
 }
 
-bool LLVoiceClient::answerInvite(std::string &channelHandle)
+// Returns true if the indicated participant in the current audio session is really an SL avatar.
+// Currently this will be false only for PSTN callers into group chats, and PSTN p2p calls.
+bool LLVoiceClient::isParticipantAvatar(const LLUUID &id)
 {
-	if (mVoiceModule) 
+	bool result = true; 
+	sessionState *session = findSession(id);
+	
+	if(session != NULL)
 	{
-		return mVoiceModule->answerInvite(channelHandle);
+		// this is a p2p session with the indicated caller, or the session with the specified UUID.
+		if(session->mSynthesizedCallerID)
+			result = false;
 	}
 	else
 	{
-		return false;
+		// Didn't find a matching session -- check the current audio session for a matching participant
+		if(mAudioSession != NULL)
+		{
+			participantState *participant = findParticipantByID(id);
+			if(participant != NULL)
+			{
+				result = participant->isAvatar();
+			}
+		}
 	}
+	
+	return result;
 }
 
-void LLVoiceClient::declineInvite(std::string &channelHandle)
+// Returns true if calling back the session URI after the session has closed is possible.
+// Currently this will be false only for PSTN P2P calls.		
+bool LLVoiceClient::isSessionCallBackPossible(const LLUUID &session_id)
 {
-	if (mVoiceModule) mVoiceModule->declineInvite(channelHandle);
+	bool result = true; 
+	sessionState *session = findSession(session_id);
+	
+	if(session != NULL)
+	{
+		result = session->isCallBackPossible();
+	}
+	
+	return result;
 }
 
+// Returns true if the session can accepte text IM's.
+// Currently this will be false only for PSTN P2P calls.
+bool LLVoiceClient::isSessionTextIMPossible(const LLUUID &session_id)
+{
+	bool result = true; 
+	sessionState *session = findSession(session_id);
+	
+	if(session != NULL)
+	{
+		result = session->isTextIMPossible();
+	}
+	
+	return result;
+}
+		
 
-//------------------------------------------
-// Volume/gain
+void LLVoiceClient::declineInvite(std::string &sessionHandle)
+{
+	sessionState *session = findSession(sessionHandle);
+	if(session)
+	{
+		sessionMediaDisconnectSendMessage(session);
+	}
+}
 
+void LLVoiceClient::leaveNonSpatialChannel()
+{
+	LL_DEBUGS("Voice") 
+		<< "called in state " << state2string(getState()) 
+		<< LL_ENDL;
+	
+	// Make sure we don't rejoin the current session.	
+	sessionState *oldNextSession = mNextAudioSession;
+	mNextAudioSession = NULL;
+	
+	// Most likely this will still be the current session at this point, but check it anyway.
+	reapSession(oldNextSession);
+	
+	verifySessionState();
+	
+	sessionTerminate();
+}
 
-void LLVoiceClient::setVoiceVolume(F32 volume)
+std::string LLVoiceClient::getCurrentChannel()
 {
-	if (mVoiceModule) mVoiceModule->setVoiceVolume(volume);
+	std::string result;
+	
+	if((getState() == stateRunning) && !mSessionTerminateRequested)
+	{
+		result = getAudioSessionURI();
+	}
+	
+	return result;
 }
 
-void LLVoiceClient::setMicGain(F32 volume)
+bool LLVoiceClient::inProximalChannel()
 {
-	if (mVoiceModule) mVoiceModule->setMicGain(volume);
+	bool result = false;
+	
+	if((getState() == stateRunning) && !mSessionTerminateRequested)
+	{
+		result = inSpatialChannel();
+	}
+	
+	return result;
 }
 
+std::string LLVoiceClient::sipURIFromID(const LLUUID &id)
+{
+	std::string result;
+	result = "sip:";
+	result += nameFromID(id);
+	result += "@";
+	result += mVoiceSIPURIHostName;
+	
+	return result;
+}
 
-//------------------------------------------
-// enable/disable voice features
+std::string LLVoiceClient::sipURIFromAvatar(LLVOAvatar *avatar)
+{
+	std::string result;
+	if(avatar)
+	{
+		result = "sip:";
+		result += nameFromID(avatar->getID());
+		result += "@";
+		result += mVoiceSIPURIHostName;
+	}
+	
+	return result;
+}
 
-bool LLVoiceClient::voiceEnabled()
+std::string LLVoiceClient::nameFromAvatar(LLVOAvatar *avatar)
 {
-	if (mVoiceModule) 
+	std::string result;
+	if(avatar)
 	{
-		return mVoiceModule->voiceEnabled();
+		result = nameFromID(avatar->getID());
+	}	
+	return result;
+}
+
+std::string LLVoiceClient::nameFromID(const LLUUID &uuid)
+{
+	std::string result;
+	
+	if (uuid.isNull()) {
+		//VIVOX, the uuid emtpy look for the mURIString and return that instead.
+		//result.assign(uuid.mURIStringName);
+		LLStringUtil::replaceChar(result, '_', ' ');
+		return result;
 	}
-	else
+	// Prepending this apparently prevents conflicts with reserved names inside the vivox and diamondware code.
+	result = "x";
+	
+	// Base64 encode and replace the pieces of base64 that are less compatible 
+	// with e-mail local-parts.
+	// See RFC-4648 "Base 64 Encoding with URL and Filename Safe Alphabet"
+	result += LLBase64::encode(uuid.mData, UUID_BYTES);
+	LLStringUtil::replaceChar(result, '+', '-');
+	LLStringUtil::replaceChar(result, '/', '_');
+	
+	// If you need to transform a GUID to this form on the Mac OS X command line, this will do so:
+	// echo -n x && (echo e669132a-6c43-4ee1-a78d-6c82fff59f32 |xxd -r -p |openssl base64|tr '/+' '_-')
+	
+	// The reverse transform can be done with:
+	// echo 'x5mkTKmxDTuGnjWyC__WfMg==' |cut -b 2- -|tr '_-' '/+' |openssl base64 -d|xxd -p
+	
+	return result;
+}
+
+bool LLVoiceClient::IDFromName(const std::string inName, LLUUID &uuid)
+{
+	bool result = false;
+	
+	// SLIM SDK: The "name" may actually be a SIP URI such as: "sip:xFnPP04IpREWNkuw1cOXlhw==@bhr.vivox.com"
+	// If it is, convert to a bare name before doing the transform.
+	std::string name = nameFromsipURI(inName);
+	
+	// Doesn't look like a SIP URI, assume it's an actual name.
+	if(name.empty())
+		name = inName;
+
+	// This will only work if the name is of the proper form.
+	// As an example, the account name for Monroe Linden (UUID 1673cfd3-8229-4445-8d92-ec3570e5e587) is:
+	// "xFnPP04IpREWNkuw1cOXlhw=="
+	
+	if((name.size() == 25) && (name[0] == 'x') && (name[23] == '=') && (name[24] == '='))
+	{
+		// The name appears to have the right form.
+
+		// Reverse the transforms done by nameFromID
+		std::string temp = name;
+		LLStringUtil::replaceChar(temp, '-', '+');
+		LLStringUtil::replaceChar(temp, '_', '/');
+
+		U8 rawuuid[UUID_BYTES + 1]; 
+		int len = apr_base64_decode_binary(rawuuid, temp.c_str() + 1);
+		if(len == UUID_BYTES)
+		{
+			// The decode succeeded.  Stuff the bits into the result's UUID
+			memcpy(uuid.mData, rawuuid, UUID_BYTES);
+			result = true;
+		}
+	} 
+	
+	if(!result)
 	{
-		return false;
+		// VIVOX:  not a standard account name, just copy the URI name mURIString field
+		// and hope for the best.  bpj
+		uuid.setNull();  // VIVOX, set the uuid field to nulls
 	}
+	
+	return result;
 }
 
-void LLVoiceClient::setVoiceEnabled(bool enabled)
+std::string LLVoiceClient::displayNameFromAvatar(LLVOAvatar *avatar)
 {
-	if (mVoiceModule) mVoiceModule->setVoiceEnabled(enabled);
+	return avatar->getFullname();
 }
 
-void LLVoiceClient::setLipSyncEnabled(BOOL enabled)
+std::string LLVoiceClient::sipURIFromName(std::string &name)
 {
-	if (mVoiceModule) mVoiceModule->setLipSyncEnabled(enabled);
+	std::string result;
+	result = "sip:";
+	result += name;
+	result += "@";
+	result += mVoiceSIPURIHostName;
+
+//	LLStringUtil::toLower(result);
+
+	return result;
 }
 
-BOOL LLVoiceClient::lipSyncEnabled()
+std::string LLVoiceClient::nameFromsipURI(const std::string &uri)
 {
-	if (mVoiceModule) 
+	std::string result;
+
+	std::string::size_type sipOffset, atOffset;
+	sipOffset = uri.find("sip:");
+	atOffset = uri.find("@");
+	if((sipOffset != std::string::npos) && (atOffset != std::string::npos))
 	{
-		return mVoiceModule->lipSyncEnabled();
+		result = uri.substr(sipOffset + 4, atOffset - (sipOffset + 4));
 	}
-	else
+	
+	return result;
+}
+
+bool LLVoiceClient::inSpatialChannel(void)
+{
+	bool result = false;
+	
+	if(mAudioSession)
+		result = mAudioSession->mIsSpatial;
+		
+	return result;
+}
+
+std::string LLVoiceClient::getAudioSessionURI()
+{
+	std::string result;
+	
+	if(mAudioSession)
+		result = mAudioSession->mSIPURI;
+		
+	return result;
+}
+
+std::string LLVoiceClient::getAudioSessionHandle()
+{
+	std::string result;
+	
+	if(mAudioSession)
+		result = mAudioSession->mHandle;
+		
+	return result;
+}
+
+
+/////////////////////////////
+// Sending updates of current state
+
+void LLVoiceClient::enforceTether(void)
+{
+	LLVector3d tethered	= mCameraRequestedPosition;
+
+	// constrain 'tethered' to within 50m of mAvatarPosition.
+	{
+		F32 max_dist = 50.0f;
+		LLVector3d camera_offset = mCameraRequestedPosition - mAvatarPosition;
+		F32 camera_distance = (F32)camera_offset.magVec();
+		if(camera_distance > max_dist)
+		{
+			tethered = mAvatarPosition + 
+				(max_dist / camera_distance) * camera_offset;
+		}
+	}
+	
+	if(dist_vec(mCameraPosition, tethered) > 0.1)
 	{
-		return false;
+		mCameraPosition = tethered;
+		mSpatialCoordsDirty = true;
 	}
 }
 
-void LLVoiceClient::setMuteMic(bool muted)
+void LLVoiceClient::updatePosition(void)
+{
+	if(gVoiceClient)
+	{
+		LLViewerRegion *region = gAgent.getRegion();
+		if(region && isAgentAvatarValid())
+		{
+			LLMatrix3 rot;
+			LLVector3d pos;
+
+			// TODO: If camera and avatar velocity are actually used by the voice system, we could compute them here...
+			// They're currently always set to zero.
+
+			// Send the current camera position to the voice code
+			rot.setRows(LLViewerCamera::getInstance()->getAtAxis(), LLViewerCamera::getInstance()->getLeftAxis (),  LLViewerCamera::getInstance()->getUpAxis());		
+			pos = gAgent.getRegion()->getPosGlobalFromRegion(LLViewerCamera::getInstance()->getOrigin());
+			
+			gVoiceClient->setCameraPosition(
+					pos,				// position
+					LLVector3::zero, 	// velocity
+					rot);				// rotation matrix
+					
+			// Send the current avatar position to the voice code
+			rot = gAgentAvatarp->getRootJoint()->getWorldRotation().getMatrix3();
+	
+			pos = gAgentAvatarp->getPositionGlobal();
+			// TODO: Can we get the head offset from outside the LLVOAvatar?
+//			pos += LLVector3d(mHeadOffset);
+			pos += LLVector3d(0.f, 0.f, 1.f);
+		
+			gVoiceClient->setAvatarPosition(
+					pos,				// position
+					LLVector3::zero, 	// velocity
+					rot);				// rotation matrix
+		}
+	}
+}
+
+void LLVoiceClient::setCameraPosition(const LLVector3d &position, const LLVector3 &velocity, const LLMatrix3 &rot)
 {
-	if (mVoiceModule) mVoiceModule->setMuteMic(muted);
+	mCameraRequestedPosition = position;
+	
+	if(mCameraVelocity != velocity)
+	{
+		mCameraVelocity = velocity;
+		mSpatialCoordsDirty = true;
+	}
+	
+	if(mCameraRot != rot)
+	{
+		mCameraRot = rot;
+		mSpatialCoordsDirty = true;
+	}
 }
 
+void LLVoiceClient::setAvatarPosition(const LLVector3d &position, const LLVector3 &velocity, const LLMatrix3 &rot)
+{
+	if(dist_vec(mAvatarPosition, position) > 0.1)
+	{
+		mAvatarPosition = position;
+		mSpatialCoordsDirty = true;
+	}
+	
+	if(mAvatarVelocity != velocity)
+	{
+		mAvatarVelocity = velocity;
+		mSpatialCoordsDirty = true;
+	}
+	
+	if(mAvatarRot != rot)
+	{
+		mAvatarRot = rot;
+		mSpatialCoordsDirty = true;
+	}
+}
+
+bool LLVoiceClient::channelFromRegion(LLViewerRegion *region, std::string &name)
+{
+	bool result = false;
+	
+	if(region)
+	{
+		name = region->getName();
+	}
+	
+	if(!name.empty())
+		result = true;
+	
+	return result;
+}
+
+void LLVoiceClient::leaveChannel(void)
+{
+	if(getState() == stateRunning)
+	{
+		LL_DEBUGS("Voice") << "leaving channel for teleport/logout" << LL_ENDL;
+		mChannelName.clear();
+		sessionTerminate();
+	}
+}
+
+void LLVoiceClient::setMuteMic(bool muted)
+{
+	mMuteMic = muted;
+}
 
-// ----------------------------------------------
-// PTT
+bool LLVoiceClient::getMuteMic() const
+{
+	return mMuteMic;
+}
 
 void LLVoiceClient::setUserPTTState(bool ptt)
 {
-	if (mVoiceModule) mVoiceModule->setUserPTTState(ptt);
+	mUserPTTState = ptt;
 }
 
 bool LLVoiceClient::getUserPTTState()
 {
-	if (mVoiceModule) 
+	return mUserPTTState;
+}
+
+void LLVoiceClient::toggleUserPTTState(void)
+{
+	mUserPTTState = !mUserPTTState;
+}
+
+void LLVoiceClient::setVoiceEnabled(bool enabled)
+{
+	if (enabled != mVoiceEnabled)
 	{
-		return mVoiceModule->getUserPTTState();
+		mVoiceEnabled = enabled;
+		LLVoiceClientStatusObserver::EStatusType status;
+
+		if (enabled)
+		{
+			LLVoiceChannel::getCurrentVoiceChannel()->activate();
+			status = LLVoiceClientStatusObserver::STATUS_VOICE_ENABLED;
+		}
+		else
+		{
+			// Turning voice off looses your current channel -- this makes sure the UI isn't out of sync when you re-enable it.
+			LLVoiceChannel::getCurrentVoiceChannel()->deactivate();
+			status = LLVoiceClientStatusObserver::STATUS_VOICE_DISABLED;
+		}
+
+		notifyStatusObservers(status);
+	}
+}
+
+bool LLVoiceClient::voiceEnabled()
+{
+	return gSavedSettings.getBOOL("EnableVoiceChat") && !gSavedSettings.getBOOL("CmdLineDisableVoice");
+}
+
+//AD *TODO: investigate possible merge of voiceWorking() and voiceEnabled() into one non-static method
+bool LLVoiceClient::voiceWorking()
+{
+	//Added stateSessionTerminated state to avoid problems with call in parcels with disabled voice (EXT-4758)
+	// Condition with joining spatial num was added to take into account possible problems with connection to voice
+	// server(EXT-4313). See bug descriptions and comments for MAX_NORMAL_JOINING_SPATIAL_NUM for more info.
+	return (mSpatialJoiningNum < MAX_NORMAL_JOINING_SPATIAL_NUM) && (stateLoggedIn <= mState) && (mState <= stateSessionTerminated);
+}
+
+void LLVoiceClient::setLipSyncEnabled(BOOL enabled)
+{
+	mLipSyncEnabled = enabled;
+}
+
+BOOL LLVoiceClient::lipSyncEnabled()
+{
+	   
+	if ( mVoiceEnabled && stateDisabled != getState() )
+	{
+		return mLipSyncEnabled;
 	}
 	else
 	{
-		return false;
+		return FALSE;
 	}
 }
 
 void LLVoiceClient::setUsePTT(bool usePTT)
 {
-	if (mVoiceModule) mVoiceModule->setUsePTT(usePTT);
+	if(usePTT && !mUsePTT)
+	{
+		// When the user turns on PTT, reset the current state.
+		mUserPTTState = false;
+	}
+	mUsePTT = usePTT;
 }
 
 void LLVoiceClient::setPTTIsToggle(bool PTTIsToggle)
 {
-	if (mVoiceModule) mVoiceModule->setPTTIsToggle(PTTIsToggle);
+	if(!PTTIsToggle && mPTTIsToggle)
+	{
+		// When the user turns off toggle, reset the current state.
+		mUserPTTState = false;
+	}
+	
+	mPTTIsToggle = PTTIsToggle;
 }
 
 bool LLVoiceClient::getPTTIsToggle()
 {
-	if (mVoiceModule) 
+	return mPTTIsToggle;
+}
+
+void LLVoiceClient::setPTTKey(std::string &key)
+{
+	if(key == "MiddleMouse")
 	{
-		return mVoiceModule->getPTTIsToggle();
+		mPTTIsMiddleMouse = true;
 	}
-	else {
-		return false;
+	else
+	{
+		mPTTIsMiddleMouse = false;
+		if(!LLKeyboard::keyFromString(key, &mPTTKey))
+		{
+			// If the call failed, don't match any key.
+			key = KEY_NONE;
+		}
 	}
+}
 
+void LLVoiceClient::setEarLocation(S32 loc)
+{
+	if(mEarLocation != loc)
+	{
+		LL_DEBUGS("Voice") << "Setting mEarLocation to " << loc << LL_ENDL;
+		
+		mEarLocation = loc;
+		mSpatialCoordsDirty = true;
+	}
 }
 
-void LLVoiceClient::inputUserControlState(bool down)
+void LLVoiceClient::setVoiceVolume(F32 volume)
 {
-	if (mVoiceModule) mVoiceModule->inputUserControlState(down);	
+	int scaled_volume = scale_speaker_volume(volume);	
+
+	if(scaled_volume != mSpeakerVolume)
+	{
+		int min_volume = scale_speaker_volume(0);
+		if((scaled_volume == min_volume) || (mSpeakerVolume == min_volume))
+		{
+			mSpeakerMuteDirty = true;
+		}
+
+		mSpeakerVolume = scaled_volume;
+		mSpeakerVolumeDirty = true;
+	}
 }
 
-void LLVoiceClient::toggleUserPTTState(void)
+void LLVoiceClient::setMicGain(F32 volume)
 {
-	if (mVoiceModule) mVoiceModule->toggleUserPTTState();
+	int scaled_volume = scale_mic_volume(volume);
+	
+	if(scaled_volume != mMicVolume)
+	{
+		mMicVolume = scaled_volume;
+		mMicVolumeDirty = true;
+	}
 }
 
 void LLVoiceClient::keyDown(KEY key, MASK mask)
 {	
-	if (mVoiceModule) mVoiceModule->keyDown(key, mask);
+	if (gKeyboard->getKeyRepeated(key))
+	{
+		// ignore auto-repeat keys
+		return;
+	}
+
+	if(!mPTTIsMiddleMouse)
+	{
+		bool down = (mPTTKey != KEY_NONE)
+			&& gKeyboard->getKeyDown(mPTTKey);
+		inputUserControlState(down);
+	}
 }
 void LLVoiceClient::keyUp(KEY key, MASK mask)
 {
-	if (mVoiceModule) mVoiceModule->keyUp(key, mask);
+	if(!mPTTIsMiddleMouse)
+	{
+		bool down = (mPTTKey != KEY_NONE)
+			&& gKeyboard->getKeyDown(mPTTKey);
+		inputUserControlState(down);
+	}
+}
+void LLVoiceClient::inputUserControlState(bool down)
+{
+	if(mPTTIsToggle)
+	{
+		if(down) // toggle open-mic state on 'down'
+		{
+			toggleUserPTTState();
+		}
+	}
+	else // set open-mic state as an absolute
+	{
+		setUserPTTState(down);
+	}
 }
 void LLVoiceClient::middleMouseState(bool down)
 {
-	if (mVoiceModule) mVoiceModule->middleMouseState(down);
+	if(mPTTIsMiddleMouse)
+	{
+		inputUserControlState(down);
+	}
 }
 
+/////////////////////////////
+// Accessors for data related to nearby speakers
+BOOL LLVoiceClient::getVoiceEnabled(const LLUUID& id)
+{
+	BOOL result = FALSE;
+	participantState *participant = findParticipantByID(id);
+	if(participant)
+	{
+		// I'm not sure what the semantics of this should be.
+		// For now, if we have any data about the user that came through the chat channel, assume they're voice-enabled.
+		result = TRUE;
+	}
+	
+	return result;
+}
 
-//-------------------------------------------
-// nearby speaker accessors
+BOOL LLVoiceClient::getIsSpeaking(const LLUUID& id)
+{
+	BOOL result = FALSE;
 
-BOOL LLVoiceClient::getVoiceEnabled(const LLUUID& id)
+	participantState *participant = findParticipantByID(id);
+	if(participant)
+	{
+		if (participant->mSpeakingTimeout.getElapsedTimeF32() > SPEAKING_TIMEOUT)
+		{
+			participant->mIsSpeaking = FALSE;
+		}
+		result = participant->mIsSpeaking;
+	}
+	
+	return result;
+}
+
+BOOL LLVoiceClient::getIsModeratorMuted(const LLUUID& id)
 {
-	if (mVoiceModule) 
+	BOOL result = FALSE;
+
+	participantState *participant = findParticipantByID(id);
+	if(participant)
 	{
-		return mVoiceModule->getVoiceEnabled(id);
-	} 
-	else
+		result = participant->mIsModeratorMuted;
+	}
+	
+	return result;
+}
+
+F32 LLVoiceClient::getCurrentPower(const LLUUID& id)
+{		
+	F32 result = 0;
+	participantState *participant = findParticipantByID(id);
+	if(participant)
 	{
-		return FALSE;
+		result = participant->mPower;
 	}
+	
+	return result;
 }
 
+
 std::string LLVoiceClient::getDisplayName(const LLUUID& id)
 {
-	if (mVoiceModule) 
+	std::string result;
+	participantState *participant = findParticipantByID(id);
+	if(participant)
 	{
-		return mVoiceModule->getDisplayName(id);
+		result = participant->mDisplayName;
 	}
-	else
+	
+	return result;
+}
+
+
+BOOL LLVoiceClient::getUsingPTT(const LLUUID& id)
+{
+	BOOL result = FALSE;
+
+	participantState *participant = findParticipantByID(id);
+	if(participant)
 	{
-	  return std::string();
+		// I'm not sure what the semantics of this should be.
+		// Does "using PTT" mean they're configured with a push-to-talk button?
+		// For now, we know there's no PTT mechanism in place, so nobody is using it.
 	}
+	
+	return result;
 }
 
-bool LLVoiceClient::isVoiceWorking()
+BOOL LLVoiceClient::getOnMuteList(const LLUUID& id)
 {
-	if (mVoiceModule) 
+	BOOL result = FALSE;
+	
+	participantState *participant = findParticipantByID(id);
+	if(participant)
 	{
-		return mVoiceModule->isVoiceWorking();
+		result = participant->mOnMuteList;
 	}
-	return false;
+
+	return result;
 }
 
-BOOL LLVoiceClient::isParticipantAvatar(const LLUUID& id)
+// External accessors.
+F32 LLVoiceClient::getUserVolume(const LLUUID& id)
 {
-	if (mVoiceModule) 
+	// Minimum volume will be returned for users with voice disabled
+	F32 result = VOLUME_MIN;
+	
+	participantState *participant = findParticipantByID(id);
+	if(participant)
 	{
-		return mVoiceModule->isParticipantAvatar(id);
+		result = participant->mVolume;
+
+		// Enable this when debugging voice slider issues.  It's way to spammy even for debug-level logging.
+		// LL_DEBUGS("Voice") << "mVolume = " << result <<  " for " << id << LL_ENDL;
 	}
-	else
+
+	return result;
+}
+
+void LLVoiceClient::setUserVolume(const LLUUID& id, F32 volume)
+{
+	if(mAudioSession)
 	{
-		return FALSE;
+		participantState *participant = findParticipantByID(id);
+		if (participant && !participant->mIsSelf)
+		{
+			if (!is_approx_equal(volume, VOLUME_DEFAULT))
+			{
+				// Store this volume setting for future sessions if it has been
+				// changed from the default
+				LLSpeakerVolumeStorage::getInstance()->storeSpeakerVolume(id, volume);
+			}
+			else
+			{
+				// Remove stored volume setting if it is returned to the default
+				LLSpeakerVolumeStorage::getInstance()->removeSpeakerVolume(id);
+			}
+
+			participant->mVolume = llclamp(volume, VOLUME_MIN, VOLUME_MAX);
+			participant->mVolumeDirty = true;
+			mAudioSession->mVolumeDirty = true;
+		}
 	}
 }
 
-BOOL LLVoiceClient::isOnlineSIP(const LLUUID& id)
+std::string LLVoiceClient::getGroupID(const LLUUID& id)
 {
-	if (mVoiceModule) 
+	std::string result;
+
+	participantState *participant = findParticipantByID(id);
+	if(participant)
 	{
-		return mVoiceModule->isOnlineSIP(id);
+		result = participant->mGroupID;
 	}
-	else
+	
+	return result;
+}
+
+BOOL LLVoiceClient::getAreaVoiceDisabled()
+{
+	return mAreaVoiceDisabled;
+}
+
+void LLVoiceClient::recordingLoopStart(int seconds, int deltaFramesPerControlFrame)
+{
+//	LL_DEBUGS("Voice") << "sending SessionGroup.ControlRecording (Start)" << LL_ENDL;
+	
+	if(!mMainSessionGroupHandle.empty())
 	{
-		return FALSE;
+		std::ostringstream stream;
+		stream
+		<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"SessionGroup.ControlRecording.1\">"
+		<< "<SessionGroupHandle>" << mMainSessionGroupHandle << "</SessionGroupHandle>"
+		<< "<RecordingControlType>Start</RecordingControlType>" 
+		<< "<DeltaFramesPerControlFrame>" << deltaFramesPerControlFrame << "</DeltaFramesPerControlFrame>"
+		<< "<Filename>" << "" << "</Filename>"
+		<< "<EnableAudioRecordingEvents>false</EnableAudioRecordingEvents>"
+		<< "<LoopModeDurationSeconds>" << seconds << "</LoopModeDurationSeconds>"
+		<< "</Request>\n\n\n";
+
+
+		writeString(stream.str());
 	}
 }
 
-BOOL LLVoiceClient::getIsSpeaking(const LLUUID& id)
+void LLVoiceClient::recordingLoopSave(const std::string& filename)
 {
-	if (mVoiceModule) 
+//	LL_DEBUGS("Voice") << "sending SessionGroup.ControlRecording (Flush)" << LL_ENDL;
+
+	if(mAudioSession != NULL && !mAudioSession->mGroupHandle.empty())
 	{
-		return mVoiceModule->getIsSpeaking(id);
+		std::ostringstream stream;
+		stream
+		<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"SessionGroup.ControlRecording.1\">"
+		<< "<SessionGroupHandle>" << mMainSessionGroupHandle << "</SessionGroupHandle>"
+		<< "<RecordingControlType>Flush</RecordingControlType>" 
+		<< "<Filename>" << filename << "</Filename>"
+		<< "</Request>\n\n\n";
+
+		writeString(stream.str());
 	}
-	else
+}
+
+void LLVoiceClient::recordingStop()
+{
+//	LL_DEBUGS("Voice") << "sending SessionGroup.ControlRecording (Stop)" << LL_ENDL;
+
+	if(mAudioSession != NULL && !mAudioSession->mGroupHandle.empty())
 	{
-		return FALSE;
+		std::ostringstream stream;
+		stream
+		<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"SessionGroup.ControlRecording.1\">"
+		<< "<SessionGroupHandle>" << mMainSessionGroupHandle << "</SessionGroupHandle>"
+		<< "<RecordingControlType>Stop</RecordingControlType>" 
+		<< "</Request>\n\n\n";
+
+		writeString(stream.str());
 	}
 }
 
-BOOL LLVoiceClient::getIsModeratorMuted(const LLUUID& id)
+void LLVoiceClient::filePlaybackStart(const std::string& filename)
 {
-	if (mVoiceModule) 
+//	LL_DEBUGS("Voice") << "sending SessionGroup.ControlPlayback (Start)" << LL_ENDL;
+
+	if(mAudioSession != NULL && !mAudioSession->mGroupHandle.empty())
 	{
-		return mVoiceModule->getIsModeratorMuted(id);
+		std::ostringstream stream;
+		stream
+		<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"SessionGroup.ControlPlayback.1\">"
+		<< "<SessionGroupHandle>" << mMainSessionGroupHandle << "</SessionGroupHandle>"
+		<< "<RecordingControlType>Start</RecordingControlType>" 
+		<< "<Filename>" << filename << "</Filename>"
+		<< "</Request>\n\n\n";
+
+		writeString(stream.str());
 	}
-	else
+}
+
+void LLVoiceClient::filePlaybackStop()
+{
+//	LL_DEBUGS("Voice") << "sending SessionGroup.ControlPlayback (Stop)" << LL_ENDL;
+
+	if(mAudioSession != NULL && !mAudioSession->mGroupHandle.empty())
 	{
-		return FALSE;
+		std::ostringstream stream;
+		stream
+		<< "<Request requestId=\"" << mCommandCookie++ << "\" action=\"SessionGroup.ControlPlayback.1\">"
+		<< "<SessionGroupHandle>" << mMainSessionGroupHandle << "</SessionGroupHandle>"
+		<< "<RecordingControlType>Stop</RecordingControlType>" 
+		<< "</Request>\n\n\n";
+
+		writeString(stream.str());
 	}
 }
 
-F32 LLVoiceClient::getCurrentPower(const LLUUID& id)
-{		
-	if (mVoiceModule) 
+void LLVoiceClient::filePlaybackSetPaused(bool paused)
+{
+	// TODO: Implement once Vivox gives me a sample
+}
+
+void LLVoiceClient::filePlaybackSetMode(bool vox, float speed)
+{
+	// TODO: Implement once Vivox gives me a sample
+}
+
+LLVoiceClient::sessionState::sessionState() :
+	mErrorStatusCode(0),
+	mMediaStreamState(streamStateUnknown),
+	mTextStreamState(streamStateUnknown),
+	mCreateInProgress(false),
+	mMediaConnectInProgress(false),
+	mVoiceInvitePending(false),
+	mTextInvitePending(false),
+	mSynthesizedCallerID(false),
+	mIsChannel(false),
+	mIsSpatial(false),
+	mIsP2P(false),
+	mIncoming(false),
+	mVoiceEnabled(false),
+	mReconnect(false),
+	mVolumeDirty(false),
+	mMuteDirty(false),
+	mParticipantsChanged(false)
+{
+}
+
+LLVoiceClient::sessionState::~sessionState()
+{
+	removeAllParticipants();
+}
+
+bool LLVoiceClient::sessionState::isCallBackPossible()
+{
+	// This may change to be explicitly specified by vivox in the future...
+	// Currently, only PSTN P2P calls cannot be returned.
+	// Conveniently, this is also the only case where we synthesize a caller UUID.
+	return !mSynthesizedCallerID;
+}
+
+bool LLVoiceClient::sessionState::isTextIMPossible()
+{
+	// This may change to be explicitly specified by vivox in the future...
+	return !mSynthesizedCallerID;
+}
+
+
+LLVoiceClient::sessionIterator LLVoiceClient::sessionsBegin(void)
+{
+	return mSessions.begin();
+}
+
+LLVoiceClient::sessionIterator LLVoiceClient::sessionsEnd(void)
+{
+	return mSessions.end();
+}
+
+
+LLVoiceClient::sessionState *LLVoiceClient::findSession(const std::string &handle)
+{
+	sessionState *result = NULL;
+	sessionMap::iterator iter = mSessionsByHandle.find(&handle);
+	if(iter != mSessionsByHandle.end())
 	{
-		return mVoiceModule->getCurrentPower(id);
+		result = iter->second;
 	}
-	else
+	
+	return result;
+}
+
+LLVoiceClient::sessionState *LLVoiceClient::findSessionBeingCreatedByURI(const std::string &uri)
+{	
+	sessionState *result = NULL;
+	for(sessionIterator iter = sessionsBegin(); iter != sessionsEnd(); iter++)
 	{
-		return 0.0;
+		sessionState *session = *iter;
+		if(session->mCreateInProgress && (session->mSIPURI == uri))
+		{
+			result = session;
+			break;
+		}
 	}
+	
+	return result;
 }
 
-BOOL LLVoiceClient::getOnMuteList(const LLUUID& id)
+LLVoiceClient::sessionState *LLVoiceClient::findSession(const LLUUID &participant_id)
 {
-	if (mVoiceModule) 
+	sessionState *result = NULL;
+	
+	for(sessionIterator iter = sessionsBegin(); iter != sessionsEnd(); iter++)
+	{
+		sessionState *session = *iter;
+		if((session->mCallerID == participant_id) || (session->mIMSessionID == participant_id))
+		{
+			result = session;
+			break;
+		}
+	}
+	
+	return result;
+}
+
+LLVoiceClient::sessionState *LLVoiceClient::addSession(const std::string &uri, const std::string &handle)
+{
+	sessionState *result = NULL;
+	
+	if(handle.empty())
 	{
-		return mVoiceModule->getOnMuteList(id);
+		// No handle supplied.
+		// Check whether there's already a session with this URI
+		for(sessionIterator iter = sessionsBegin(); iter != sessionsEnd(); iter++)
+		{
+			sessionState *s = *iter;
+			if((s->mSIPURI == uri) || (s->mAlternateSIPURI == uri))
+			{
+				// TODO: I need to think about this logic... it's possible that this case should raise an internal error.
+				result = s;
+				break;
+			}
+		}
+	}
+	else // (!handle.empty())
+	{
+		// Check for an existing session with this handle
+		sessionMap::iterator iter = mSessionsByHandle.find(&handle);
+		
+		if(iter != mSessionsByHandle.end())
+		{
+			result = iter->second;
+		}
+	}
+
+	if(!result)
+	{
+		// No existing session found.
+		
+		LL_DEBUGS("Voice") << "adding new session: handle " << handle << " URI " << uri << LL_ENDL;
+		result = new sessionState();
+		result->mSIPURI = uri;
+		result->mHandle = handle;
+		
+		mSessions.insert(result);
+
+		if(!result->mHandle.empty())
+		{
+			mSessionsByHandle.insert(sessionMap::value_type(&(result->mHandle), result));
+		}
 	}
 	else
 	{
-		return FALSE;
+		// Found an existing session
+		
+		if(uri != result->mSIPURI)
+		{
+			// TODO: Should this be an internal error?
+			LL_DEBUGS("Voice") << "changing uri from " << result->mSIPURI << " to " << uri << LL_ENDL;
+			setSessionURI(result, uri);
+		}
+
+		if(handle != result->mHandle)
+		{
+			if(handle.empty())
+			{
+				// There's at least one race condition where where addSession was clearing an existing session handle, which caused things to break.
+				LL_DEBUGS("Voice") << "NOT clearing handle " << result->mHandle << LL_ENDL;
+			}
+			else
+			{
+				// TODO: Should this be an internal error?
+				LL_DEBUGS("Voice") << "changing handle from " << result->mHandle << " to " << handle << LL_ENDL;
+				setSessionHandle(result, handle);
+			}
+		}
+		
+		LL_DEBUGS("Voice") << "returning existing session: handle " << handle << " URI " << uri << LL_ENDL;
 	}
+
+	verifySessionState();
+		
+	return result;
 }
 
-F32 LLVoiceClient::getUserVolume(const LLUUID& id)
+void LLVoiceClient::setSessionHandle(sessionState *session, const std::string &handle)
+{
+	// Have to remove the session from the handle-indexed map before changing the handle, or things will break badly.
+	
+	if(!session->mHandle.empty())
+	{
+		// Remove session from the map if it should have been there.
+		sessionMap::iterator iter = mSessionsByHandle.find(&(session->mHandle));
+		if(iter != mSessionsByHandle.end())
+		{
+			if(iter->second != session)
+			{
+				LL_ERRS("Voice") << "Internal error: session mismatch!" << LL_ENDL;
+			}
+
+			mSessionsByHandle.erase(iter);
+		}
+		else
+		{
+			LL_ERRS("Voice") << "Internal error: session handle not found in map!" << LL_ENDL;
+		}
+	}
+			
+	session->mHandle = handle;
+
+	if(!handle.empty())
+	{
+		mSessionsByHandle.insert(sessionMap::value_type(&(session->mHandle), session));
+	}
+
+	verifySessionState();
+}
+
+void LLVoiceClient::setSessionURI(sessionState *session, const std::string &uri)
+{
+	// There used to be a map of session URIs to sessions, which made this complex....
+	session->mSIPURI = uri;
+
+	verifySessionState();
+}
+
+void LLVoiceClient::deleteSession(sessionState *session)
+{
+	// Remove the session from the handle map
+	if(!session->mHandle.empty())
+	{
+		sessionMap::iterator iter = mSessionsByHandle.find(&(session->mHandle));
+		if(iter != mSessionsByHandle.end())
+		{
+			if(iter->second != session)
+			{
+				LL_ERRS("Voice") << "Internal error: session mismatch" << LL_ENDL;
+			}
+			mSessionsByHandle.erase(iter);
+		}
+	}
+
+	// Remove the session from the URI map
+	mSessions.erase(session);
+	
+	// At this point, the session should be unhooked from all lists and all state should be consistent.
+	verifySessionState();
+
+	// If this is the current audio session, clean up the pointer which will soon be dangling.
+	if(mAudioSession == session)
+	{
+		mAudioSession = NULL;
+		mAudioSessionChanged = true;
+	}
+
+	// ditto for the next audio session
+	if(mNextAudioSession == session)
+	{
+		mNextAudioSession = NULL;
+	}
+
+	// delete the session
+	delete session;
+}
+
+void LLVoiceClient::deleteAllSessions()
+{
+	LL_DEBUGS("Voice") << "called" << LL_ENDL;
+
+	while(!mSessions.empty())
+	{
+		deleteSession(*(sessionsBegin()));
+	}
+	
+	if(!mSessionsByHandle.empty())
+	{
+		LL_ERRS("Voice") << "Internal error: empty session map, non-empty handle map" << LL_ENDL;
+	}
+}
+
+void LLVoiceClient::verifySessionState(void)
+{
+	// This is mostly intended for debugging problems with session state management.
+	LL_DEBUGS("Voice") << "Total session count: " << mSessions.size() << " , session handle map size: " << mSessionsByHandle.size() << LL_ENDL;
+
+	for(sessionIterator iter = sessionsBegin(); iter != sessionsEnd(); iter++)
+	{
+		sessionState *session = *iter;
+
+		LL_DEBUGS("Voice") << "session " << session << ": handle " << session->mHandle << ", URI " << session->mSIPURI << LL_ENDL;
+		
+		if(!session->mHandle.empty())
+		{
+			// every session with a non-empty handle needs to be in the handle map
+			sessionMap::iterator i2 = mSessionsByHandle.find(&(session->mHandle));
+			if(i2 == mSessionsByHandle.end())
+			{
+				LL_ERRS("Voice") << "internal error (handle " << session->mHandle << " not found in session map)" << LL_ENDL;
+			}
+			else
+			{
+				if(i2->second != session)
+				{
+					LL_ERRS("Voice") << "internal error (handle " << session->mHandle << " in session map points to another session)" << LL_ENDL;
+				}
+			}
+		}
+	}
+		
+	// check that every entry in the handle map points to a valid session in the session set
+	for(sessionMap::iterator iter = mSessionsByHandle.begin(); iter != mSessionsByHandle.end(); iter++)
+	{
+		sessionState *session = iter->second;
+		sessionIterator i2 = mSessions.find(session);
+		if(i2 == mSessions.end())
+		{
+			LL_ERRS("Voice") << "internal error (session for handle " << session->mHandle << " not found in session map)" << LL_ENDL;
+		}
+		else
+		{
+			if(session->mHandle != (*i2)->mHandle)
+			{
+				LL_ERRS("Voice") << "internal error (session for handle " << session->mHandle << " points to session with different handle " << (*i2)->mHandle << ")" << LL_ENDL;
+			}
+		}
+	}
+}
+
+LLVoiceClient::buddyListEntry::buddyListEntry(const std::string &uri) :
+	mURI(uri)
 {
-	if (mVoiceModule) 
+	mOnlineSL = false;
+	mOnlineSLim = false;
+	mCanSeeMeOnline = true;
+	mHasBlockListEntry = false;
+	mHasAutoAcceptListEntry = false;
+	mNameResolved = false;
+	mInVivoxBuddies = false;
+	mInSLFriends = false;
+	mNeedsNameUpdate = false;
+}
+
+void LLVoiceClient::processBuddyListEntry(const std::string &uri, const std::string &displayName)
+{
+	buddyListEntry *buddy = addBuddy(uri, displayName);
+	buddy->mInVivoxBuddies = true;	
+}
+
+LLVoiceClient::buddyListEntry *LLVoiceClient::addBuddy(const std::string &uri)
+{
+	std::string empty;
+	buddyListEntry *buddy = addBuddy(uri, empty);
+	if(buddy->mDisplayName.empty())
+	{
+		buddy->mNameResolved = false;
+	}
+	return buddy;
+}
+
+LLVoiceClient::buddyListEntry *LLVoiceClient::addBuddy(const std::string &uri, const std::string &displayName)
+{
+	buddyListEntry *result = NULL;
+	buddyListMap::iterator iter = mBuddyListMap.find(&uri);
+	
+	if(iter != mBuddyListMap.end())
+	{
+		// Found a matching buddy already in the map.
+		LL_DEBUGS("Voice") << "adding existing buddy " << uri << LL_ENDL;
+		result = iter->second;
+	}
+
+	if(!result)
+	{
+		// participant isn't already in one list or the other.
+		LL_DEBUGS("Voice") << "adding new buddy " << uri << LL_ENDL;
+		result = new buddyListEntry(uri);
+		result->mDisplayName = displayName;
+
+		if(IDFromName(uri, result->mUUID)) 
+		{
+			// Extracted UUID from name successfully.
+		}
+		else
+		{
+			LL_DEBUGS("Voice") << "Couldn't find ID for buddy " << uri << " (\"" << displayName << "\")" << LL_ENDL;
+		}
+
+		mBuddyListMap.insert(buddyListMap::value_type(&(result->mURI), result));
+	}
+	
+	return result;
+}
+
+LLVoiceClient::buddyListEntry *LLVoiceClient::findBuddy(const std::string &uri)
+{
+	buddyListEntry *result = NULL;
+	buddyListMap::iterator iter = mBuddyListMap.find(&uri);
+	if(iter != mBuddyListMap.end())
+	{
+		result = iter->second;
+	}
+	
+	return result;
+}
+
+LLVoiceClient::buddyListEntry *LLVoiceClient::findBuddy(const LLUUID &id)
+{
+	buddyListEntry *result = NULL;
+	buddyListMap::iterator iter;
+
+	for(iter = mBuddyListMap.begin(); iter != mBuddyListMap.end(); iter++)
+	{
+		if(iter->second->mUUID == id)
+		{
+			result = iter->second;
+			break;
+		}
+	}
+	
+	return result;
+}
+
+LLVoiceClient::buddyListEntry *LLVoiceClient::findBuddyByDisplayName(const std::string &name)
+{
+	buddyListEntry *result = NULL;
+	buddyListMap::iterator iter;
+
+	for(iter = mBuddyListMap.begin(); iter != mBuddyListMap.end(); iter++)
+	{
+		if(iter->second->mDisplayName == name)
+		{
+			result = iter->second;
+			break;
+		}
+	}
+	
+	return result;
+}
+
+void LLVoiceClient::deleteBuddy(const std::string &uri)
+{
+	buddyListMap::iterator iter = mBuddyListMap.find(&uri);
+	if(iter != mBuddyListMap.end())
 	{
-		return mVoiceModule->getUserVolume(id);
+		LL_DEBUGS("Voice") << "deleting buddy " << uri << LL_ENDL;
+		buddyListEntry *buddy = iter->second;
+		mBuddyListMap.erase(iter);
+		delete buddy;
 	}
 	else
 	{
-		return 0.0;
+		LL_DEBUGS("Voice") << "attempt to delete nonexistent buddy " << uri << LL_ENDL;
 	}
+	
 }
 
-void LLVoiceClient::setUserVolume(const LLUUID& id, F32 volume)
+void LLVoiceClient::deleteAllBuddies(void)
 {
-	if (mVoiceModule) mVoiceModule->setUserVolume(id, volume);
+	while(!mBuddyListMap.empty())
+	{
+		deleteBuddy(*(mBuddyListMap.begin()->first));
+	}
+	
+	// Don't want to correlate with friends list when we've emptied the buddy list.
+	mBuddyListMapPopulated = false;
+	
+	// Don't want to correlate with friends list when we've reset the block rules.
+	mBlockRulesListReceived = false;
+	mAutoAcceptRulesListReceived = false;
 }
 
-//--------------------------------------------------
-// status observers
+void LLVoiceClient::deleteAllBlockRules(void)
+{
+	// Clear the block list entry flags from all local buddy list entries
+	buddyListMap::iterator buddy_it;
+	for(buddy_it = mBuddyListMap.begin(); buddy_it != mBuddyListMap.end(); buddy_it++)
+	{
+		buddy_it->second->mHasBlockListEntry = false;
+	}
+}
 
-void LLVoiceClient::addObserver(LLVoiceClientStatusObserver* observer)
+void LLVoiceClient::deleteAllAutoAcceptRules(void)
 {
-	if (mVoiceModule) mVoiceModule->addObserver(observer);
+	// Clear the auto-accept list entry flags from all local buddy list entries
+	buddyListMap::iterator buddy_it;
+	for(buddy_it = mBuddyListMap.begin(); buddy_it != mBuddyListMap.end(); buddy_it++)
+	{
+		buddy_it->second->mHasAutoAcceptListEntry = false;
+	}
 }
 
-void LLVoiceClient::removeObserver(LLVoiceClientStatusObserver* observer)
+void LLVoiceClient::addBlockRule(const std::string &blockMask, const std::string &presenceOnly)
 {
-	if (mVoiceModule) mVoiceModule->removeObserver(observer);
+	buddyListEntry *buddy = NULL;
+
+	// blockMask is the SIP URI of a friends list entry
+	buddyListMap::iterator iter = mBuddyListMap.find(&blockMask);
+	if(iter != mBuddyListMap.end())
+	{
+		LL_DEBUGS("Voice") << "block list entry for " << blockMask << LL_ENDL;
+		buddy = iter->second;
+	}
+
+	if(buddy == NULL)
+	{
+		LL_DEBUGS("Voice") << "block list entry for unknown buddy " << blockMask << LL_ENDL;
+		buddy = addBuddy(blockMask);
+	}
+	
+	if(buddy != NULL)
+	{
+		buddy->mHasBlockListEntry = true;
+	}
 }
 
-void LLVoiceClient::addObserver(LLFriendObserver* observer)
+void LLVoiceClient::addAutoAcceptRule(const std::string &autoAcceptMask, const std::string &autoAddAsBuddy)
 {
-	if (mVoiceModule) mVoiceModule->addObserver(observer);
+	buddyListEntry *buddy = NULL;
+
+	// blockMask is the SIP URI of a friends list entry
+	buddyListMap::iterator iter = mBuddyListMap.find(&autoAcceptMask);
+	if(iter != mBuddyListMap.end())
+	{
+		LL_DEBUGS("Voice") << "auto-accept list entry for " << autoAcceptMask << LL_ENDL;
+		buddy = iter->second;
+	}
+
+	if(buddy == NULL)
+	{
+		LL_DEBUGS("Voice") << "auto-accept list entry for unknown buddy " << autoAcceptMask << LL_ENDL;
+		buddy = addBuddy(autoAcceptMask);
+	}
+
+	if(buddy != NULL)
+	{
+		buddy->mHasAutoAcceptListEntry = true;
+	}
 }
 
-void LLVoiceClient::removeObserver(LLFriendObserver* observer)
+void LLVoiceClient::accountListBlockRulesResponse(int statusCode, const std::string &statusString)
 {
-	if (mVoiceModule) mVoiceModule->removeObserver(observer);
+	// Block list entries were updated via addBlockRule() during parsing.  Just flag that we're done.
+	mBlockRulesListReceived = true;
+}
+
+void LLVoiceClient::accountListAutoAcceptRulesResponse(int statusCode, const std::string &statusString)
+{
+	// Block list entries were updated via addBlockRule() during parsing.  Just flag that we're done.
+	mAutoAcceptRulesListReceived = true;
 }
 
 void LLVoiceClient::addObserver(LLVoiceClientParticipantObserver* observer)
 {
-	if (mVoiceModule) mVoiceModule->addObserver(observer);
+	mParticipantObservers.insert(observer);
 }
 
 void LLVoiceClient::removeObserver(LLVoiceClientParticipantObserver* observer)
 {
-	if (mVoiceModule) mVoiceModule->removeObserver(observer);
+	mParticipantObservers.erase(observer);
 }
 
-std::string LLVoiceClient::sipURIFromID(const LLUUID &id)
+void LLVoiceClient::notifyParticipantObservers()
 {
-	if (mVoiceModule) 
+	for (observer_set_t::iterator it = mParticipantObservers.begin();
+		it != mParticipantObservers.end();
+		)
 	{
-		return mVoiceModule->sipURIFromID(id);
+		LLVoiceClientParticipantObserver* observer = *it;
+		observer->onChange();
+		// In case onChange() deleted an entry.
+		it = mParticipantObservers.upper_bound(observer);
 	}
-	else
+}
+
+void LLVoiceClient::addObserver(LLVoiceClientStatusObserver* observer)
+{
+	mStatusObservers.insert(observer);
+}
+
+void LLVoiceClient::removeObserver(LLVoiceClientStatusObserver* observer)
+{
+	mStatusObservers.erase(observer);
+}
+
+void LLVoiceClient::notifyStatusObservers(LLVoiceClientStatusObserver::EStatusType status)
+{
+	if(mAudioSession)
 	{
-		return std::string();
+		if(status == LLVoiceClientStatusObserver::ERROR_UNKNOWN)
+		{
+			switch(mAudioSession->mErrorStatusCode)
+			{
+				case 20713:		status = LLVoiceClientStatusObserver::ERROR_CHANNEL_FULL; 		break;
+				case 20714:		status = LLVoiceClientStatusObserver::ERROR_CHANNEL_LOCKED; 	break;
+				case 20715:
+					//invalid channel, we may be using a set of poorly cached
+					//info
+					status = LLVoiceClientStatusObserver::ERROR_NOT_AVAILABLE;
+					break;
+				case 1009:
+					//invalid username and password
+					status = LLVoiceClientStatusObserver::ERROR_NOT_AVAILABLE;
+					break;
+			}
+
+			// Reset the error code to make sure it won't be reused later by accident.
+			mAudioSession->mErrorStatusCode = 0;
+		}
+		else if(status == LLVoiceClientStatusObserver::STATUS_LEFT_CHANNEL)
+		{
+			switch(mAudioSession->mErrorStatusCode)
+			{
+				case 404:	// NOT_FOUND
+				case 480:	// TEMPORARILY_UNAVAILABLE
+				case 408:	// REQUEST_TIMEOUT
+					// call failed because other user was not available
+					// treat this as an error case
+					status = LLVoiceClientStatusObserver::ERROR_NOT_AVAILABLE;
+
+					// Reset the error code to make sure it won't be reused later by accident.
+					mAudioSession->mErrorStatusCode = 0;
+				break;
+			}
+		}
 	}
+		
+	LL_DEBUGS("Voice") 
+		<< " " << LLVoiceClientStatusObserver::status2string(status)  
+		<< ", session URI " << getAudioSessionURI() 
+		<< (inSpatialChannel()?", proximal is true":", proximal is false")
+	<< LL_ENDL;
+
+	for (status_observer_set_t::iterator it = mStatusObservers.begin();
+		it != mStatusObservers.end();
+		)
+	{
+		LLVoiceClientStatusObserver* observer = *it;
+		observer->onChange(status, getAudioSessionURI(), inSpatialChannel());
+		// In case onError() deleted an entry.
+		it = mStatusObservers.upper_bound(observer);
+	}
+
 }
 
+void LLVoiceClient::addObserver(LLFriendObserver* observer)
+{
+	mFriendObservers.insert(observer);
+}
 
-///////////////////
-// version checking
+void LLVoiceClient::removeObserver(LLFriendObserver* observer)
+{
+	mFriendObservers.erase(observer);
+}
 
-class LLViewerRequiredVoiceVersion : public LLHTTPNode
+void LLVoiceClient::notifyFriendObservers()
 {
-	static BOOL sAlertedUser;
-	virtual void post(
-					  LLHTTPNode::ResponsePtr response,
-					  const LLSD& context,
-					  const LLSD& input) const
+	for (friend_observer_set_t::iterator it = mFriendObservers.begin();
+		it != mFriendObservers.end();
+		)
 	{
-		//You received this messsage (most likely on region cross or
-		//teleport)
-		if ( input.has("body") && input["body"].has("major_version") )
+		LLFriendObserver* observer = *it;
+		it++;
+		// The only friend-related thing we notify on is online/offline transitions.
+		observer->changed(LLFriendObserver::ONLINE);
+	}
+}
+
+void LLVoiceClient::lookupName(const LLUUID &id)
+{
+	BOOL is_group = FALSE;
+	gCacheName->get(id, is_group, &LLVoiceClient::onAvatarNameLookup);
+}
+
+//static
+void LLVoiceClient::onAvatarNameLookup(const LLUUID& id, const std::string& first, const std::string& last, BOOL is_group)
+{
+	if(gVoiceClient)
+	{
+		std::string name = llformat("%s %s", first.c_str(), last.c_str());
+		gVoiceClient->avatarNameResolved(id, name);
+	}
+}
+
+void LLVoiceClient::avatarNameResolved(const LLUUID &id, const std::string &name)
+{
+	// If the avatar whose name just resolved is on our friends list, resync the friends list.
+	if(LLAvatarTracker::instance().getBuddyInfo(id) != NULL)
+	{
+		mFriendsListDirty = true;
+	}
+	
+	// Iterate over all sessions.
+	for(sessionIterator iter = sessionsBegin(); iter != sessionsEnd(); iter++)
+	{
+		sessionState *session = *iter;
+
+		// Check for this user as a participant in this session
+		participantState *participant = session->findParticipantByID(id);
+		if(participant)
 		{
-			int major_voice_version =
-			input["body"]["major_version"].asInteger();
-			// 			int minor_voice_version =
-			// 				input["body"]["minor_version"].asInteger();
-			LLVoiceVersionInfo versionInfo = LLVoiceClient::getInstance()->getVersion();
-			
-			if (major_voice_version > 1)
+			// Found -- fill in the name
+			participant->mAccountName = name;
+			// and post a "participants updated" message to listeners later.
+			session->mParticipantsChanged = true;
+		}
+		
+		// Check whether this is a p2p session whose caller name just resolved
+		if(session->mCallerID == id)
+		{
+			// this session's "caller ID" just resolved.  Fill in the name.
+			session->mName = name;
+			if(session->mTextInvitePending)
 			{
-				if (!sAlertedUser)
-				{
-					//sAlertedUser = TRUE;
-					LLNotificationsUtil::add("VoiceVersionMismatch");
-					gSavedSettings.setBOOL("EnableVoiceChat", FALSE); // toggles listener
-				}
+				session->mTextInvitePending = false;
+
+				// We don't need to call gIMMgr->addP2PSession() here.  The first incoming message will create the panel.				
 			}
+			if(session->mVoiceInvitePending)
+			{
+				session->mVoiceInvitePending = false;
+
+				gIMMgr->inviteToSession(
+					session->mIMSessionID,
+					session->mName,
+					session->mCallerID, 
+					session->mName, 
+					IM_SESSION_P2P_INVITE, 
+					LLIMMgr::INVITATION_TYPE_VOICE,
+					session->mHandle,
+					session->mSIPURI);
+			}
+			
 		}
 	}
-};
+}
 
 class LLViewerParcelVoiceInfo : public LLHTTPNode
 {
 	virtual void post(
-					  LLHTTPNode::ResponsePtr response,
-					  const LLSD& context,
-					  const LLSD& input) const
+		LLHTTPNode::ResponsePtr response,
+		const LLSD& context,
+		const LLSD& input) const
 	{
 		//the parcel you are in has changed something about its
 		//voice information
-		
+
 		//this is a misnomer, as it can also be when you are not in
 		//a parcel at all.  Should really be something like
 		//LLViewerVoiceInfoChanged.....
 		if ( input.has("body") )
 		{
 			LLSD body = input["body"];
-			
+
 			//body has "region_name" (str), "parcel_local_id"(int),
 			//"voice_credentials" (map).
-			
+
 			//body["voice_credentials"] has "channel_uri" (str),
 			//body["voice_credentials"] has "channel_credentials" (str)
-			
+
 			//if we really wanted to be extra careful,
 			//we'd check the supplied
 			//local parcel id to make sure it's for the same parcel
@@ -764,7 +7279,7 @@ class LLViewerParcelVoiceInfo : public LLHTTPNode
 				LLSD voice_credentials = body["voice_credentials"];
 				std::string uri;
 				std::string credentials;
-				
+
 				if ( voice_credentials.has("channel_uri") )
 				{
 					uri = voice_credentials["channel_uri"].asString();
@@ -772,96 +7287,51 @@ class LLViewerParcelVoiceInfo : public LLHTTPNode
 				if ( voice_credentials.has("channel_credentials") )
 				{
 					credentials =
-					voice_credentials["channel_credentials"].asString();
+						voice_credentials["channel_credentials"].asString();
 				}
-				
-				LLVoiceClient::getInstance()->setSpatialChannel(uri, credentials);
+
+				gVoiceClient->setSpatialChannel(uri, credentials);
 			}
 		}
 	}
 };
 
-const std::string LLSpeakerVolumeStorage::SETTINGS_FILE_NAME = "volume_settings.xml";
-
-LLSpeakerVolumeStorage::LLSpeakerVolumeStorage()
-{
-	load();
-}
-
-LLSpeakerVolumeStorage::~LLSpeakerVolumeStorage()
-{
-	save();
-}
-
-void LLSpeakerVolumeStorage::storeSpeakerVolume(const LLUUID& speaker_id, F32 volume)
-{
-	mSpeakersData[speaker_id] = volume;
-}
-
-S32 LLSpeakerVolumeStorage::getSpeakerVolume(const LLUUID& speaker_id)
-{
-	// Return value of -1 indicates no level is stored for this speaker
-	S32 ret_val = -1;
-	speaker_data_map_t::const_iterator it = mSpeakersData.find(speaker_id);
-	
-	if (it != mSpeakersData.end())
-	{
-		F32 f_val = it->second;
-		// volume can amplify by as much as 4x!
-		S32 ivol = (S32)(400.f * f_val * f_val);
-		ret_val = llclamp(ivol, 0, 400);
-	}
-	return ret_val;
-}
-
-void LLSpeakerVolumeStorage::load()
-{
-	// load per-resident voice volume information
-	std::string filename = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, SETTINGS_FILE_NAME);
-
-	LLSD settings_llsd;
-	llifstream file;
-	file.open(filename);
-	if (file.is_open())
-	{
-		LLSDSerialize::fromXML(settings_llsd, file);
-	}
-
-	for (LLSD::map_const_iterator iter = settings_llsd.beginMap();
-		iter != settings_llsd.endMap(); ++iter)
-	{
-		mSpeakersData.insert(std::make_pair(LLUUID(iter->first), (F32)iter->second.asReal()));
-	}
-}
-
-void LLSpeakerVolumeStorage::save()
+class LLViewerRequiredVoiceVersion : public LLHTTPNode
 {
-	// If we quit from the login screen we will not have an SL account
-	// name.  Don't try to save, otherwise we'll dump a file in
-	// C:\Program Files\SecondLife\ or similar. JC
-	std::string user_dir = gDirUtilp->getLindenUserDir();
-	if (!user_dir.empty())
+	static BOOL sAlertedUser;
+	virtual void post(
+		LLHTTPNode::ResponsePtr response,
+		const LLSD& context,
+		const LLSD& input) const
 	{
-		std::string filename = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, SETTINGS_FILE_NAME);
-		LLSD settings_llsd;
-
-		for(speaker_data_map_t::const_iterator iter = mSpeakersData.begin(); iter != mSpeakersData.end(); ++iter)
+		//You received this messsage (most likely on region cross or
+		//teleport)
+		if ( input.has("body") && input["body"].has("major_version") )
 		{
-			settings_llsd[iter->first.asString()] = iter->second;
-		}
+			int major_voice_version =
+				input["body"]["major_version"].asInteger();
+// 			int minor_voice_version =
+// 				input["body"]["minor_version"].asInteger();
 
-		llofstream file;
-		file.open(filename);
-		LLSDSerialize::toPrettyXML(settings_llsd, file);
+			if (gVoiceClient &&
+				(major_voice_version > VOICE_MAJOR_VERSION) )
+			{
+				if (!sAlertedUser)
+				{
+					//sAlertedUser = TRUE;
+					LLNotificationsUtil::add("VoiceVersionMismatch");
+					gSavedSettings.setBOOL("EnableVoiceChat", FALSE); // toggles listener
+				}
+			}
+		}
 	}
-}
-
+};
 BOOL LLViewerRequiredVoiceVersion::sAlertedUser = FALSE;
 
 LLHTTPRegistration<LLViewerParcelVoiceInfo>
-gHTTPRegistrationMessageParcelVoiceInfo(
-										"/message/ParcelVoiceInfo");
+    gHTTPRegistrationMessageParcelVoiceInfo(
+		"/message/ParcelVoiceInfo");
 
 LLHTTPRegistration<LLViewerRequiredVoiceVersion>
-gHTTPRegistrationMessageRequiredVoiceVersion(
-											 "/message/RequiredVoiceVersion");
+    gHTTPRegistrationMessageRequiredVoiceVersion(
+		"/message/RequiredVoiceVersion");