need
Call this method to check if Volume Control Stream should be set to STREAM_VOICE_CALL from displayed activity Note that : By default, for PTT VoIP calls, audio mode used is MODE_NORMAL. In this case, default volume control stream used by system is not STREAM_VOICE_CALL. * To force activity to control volume stream for ongoing VoIP session : activity.setVolumeControlStream(AudioManager.USE_DEFAULT_STREAM_TYPE); * To reset volume control stream : activity.setVolumeControlStream(AudioManager.STREAM_VOICE_CALL);
Return
true if it is recommended to set the volume control to STREAM_VOICE_CALL, false otherwise