How do I mute RingBack Tone?

Question

(sorry, My English isn't good.)

I want to mute Ring-back Tone. I want to hear my favorite music. I want to mute the receiver's ring-back tone.

How do I mute RingBack Tone(Receiver's)? AudioManager? Mediaplayer.setStreamType?

AudioManager.setStreamMute(AudioManager.STREAM_VOICE_CALL,true);
AudioManager.setStreamVolume(AudioManager.STREAM_VOICE_CALL, 0, 0);

I tried this code. But this code isn't what I want.

Please help me.

Thanks.