Get voice stream during android call

Question

I have wifi connection between java desktop app and android app. I need to transfer opponent's voice during call to desktop side and also transer my voice from desktop's microphone to opponent. How can I do it? How can I get input and output streams of call?

Answer 1

You can not handle gsm call data (neither send over uplink nor receive over downlink). I think you can try sip calls if that meets your requirement.