Need to play audio into a call
<p>If my application records some audio with MediaRecorder, is it possible to play the recorded audio file into a call that was started with ACTION_CALL or ACTION_DIAL?</p>

<p>I see that I can start calls from an application but is there a way for my application to know that the call was answered? At this point I would like to play a file of audio into the call. Then, is there a way for me to end the call?</p>
