<?xml version="1.0" encoding="utf-8" standalone="yes"?> <panel name="panel_im_control_panel"> <panel name="panel_call_buttons"> <button label="Chiama" name="call_btn"/> <button label="Abbandona Chiamata" name="end_call_btn"/> <button label="Voice Controls" name="voice_ctrls_btn"/> </panel> </panel>