From 4fc4d965c10ff4b40bab31ef3122b2a5be6851b7 Mon Sep 17 00:00:00 2001
From: Mnikolenko Productengine <mnikolenko@productengine.com>
Date: Mon, 23 Aug 2021 17:46:38 +0300
Subject: SL-15868 FIXED Crash in LLFloaterIMSessionTab::enableDisableCallBtn

---
 indra/newview/llfloaterimsessiontab.cpp | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

(limited to 'indra/newview/llfloaterimsessiontab.cpp')

diff --git a/indra/newview/llfloaterimsessiontab.cpp b/indra/newview/llfloaterimsessiontab.cpp
index 7541bb5efe..76723da77e 100644
--- a/indra/newview/llfloaterimsessiontab.cpp
+++ b/indra/newview/llfloaterimsessiontab.cpp
@@ -384,13 +384,16 @@ void LLFloaterIMSessionTab::draw()
 
 void LLFloaterIMSessionTab::enableDisableCallBtn()
 {
-    mVoiceButton->setEnabled(
-    		mSessionID.notNull()
-    		&& mSession
-    		&& mSession->mSessionInitialized
-    		&& LLVoiceClient::getInstance()->voiceEnabled()
-    		&& LLVoiceClient::getInstance()->isVoiceWorking()
-    		&& mSession->mCallBackEnabled);
+    if (LLVoiceClient::instanceExists())
+    {
+        mVoiceButton->setEnabled(
+            mSessionID.notNull()
+            && mSession
+            && mSession->mSessionInitialized
+            && LLVoiceClient::getInstance()->voiceEnabled()
+            && LLVoiceClient::getInstance()->isVoiceWorking()
+            && mSession->mCallBackEnabled);
+    }
 }
 
 void LLFloaterIMSessionTab::onFocusReceived()
-- 
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