Hey Guys, New to the forums, I have a quick question. I am attempting to mute the phone call in progress from my application. I have tried all the following: this.setVolumeControlStream(mAudioManager.STREAM_VOICE_CALL); mAudioManager.setMicrophoneMute(true); mAudioManager.setStreamMute(0, true); mAudioManager.setStreamVolume(0, 0, 0); but none seem to work. I have the active call going on and the call stays unmuted. Does anyone have any ideas? Thanks!