android - Need to play audio to the caller -


for app need play pre recorded message caller. if calls phone , enable app should play audio such caller hears it. tried setting stream stream_dtmf,stream_voice_call ... (tried of them) nothing worked. stream_music made audio play through speaker not such caller hear ...

tried searching around have not found answer yet ... appreciate if can respond !

this not directly possible on current android phones, outgoing call audio not pass through application processor on linux , android run.


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