Set audio mode to VoIP for outgoing calls

Author: geraintwhite

android/src/main/java/io/wazo/callkeep/VoiceConnectionService.java

@@ -78,6 +78,7 @@ public Connection onCreateOutgoingConnection(PhoneAccountHandle connectionManage
 
         Connection outgoingCallConnection = createConnection(request);
         outgoingCallConnection.setDialing();
+        outgoingCallConnection.setAudioModeIsVoip(true);
 
         sendCallRequestToActivity(ACTION_ONGOING_CALL, request.getAddress().getSchemeSpecificPart());
         sendCallRequestToActivity(ACTION_AUDIO_SESSION, null);