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How do I play custom audio file when phone call on Android is put on hold?
2013-10-26 12:15:50
Have a look at the answer of the question below which does suggest using VOIP but also warns about its cons -
Playing a song when I put a caller on hold
2013-10-26 11:34:15
I agree
2013-10-25 20:01:36
i think Android platform does not allow you to modify the outgoing audio during a phone call even if the call is put on hold since it is considered outgoing/ongoing audio . Media Playbackhttp://developer.android.com/guide/topics/media/mediaplayer.html