Tap the button that would normally be mute.Not sure if this has been discussed before (thread is crazy long). But I was really surprised that there is no way to answer or end a phone call with buttons on the steering wheel. Unless I am missing something, you have to accept an incoming call and end any call on the right side of the cockpit display. There really should be a button on the steering wheel for this. Even if the media control buttons had a dual function that changes/changed when a call comes in.