So, what I want to make is an android app which can place calls and show its own call UI. I don't want to use VoIP though, i just want to make a normal call. I also don't want to replace the default phone app - it should just be it's standalone thing. Ideally I would also need the audio stream, because I need to listen to it, which is not really possible my getting it back through the microphone.
The only thing I found is how to tell the android system that I'm starting a call, but I can't find anything about how to actually transmit the voice over a normal phone call. I've tried following the docs with creating a self managed ConnectionService, but it doesn't place a call or do anything. Is it even possible to do something like that or can't i place normal calls without becoming the default phone app?
Thanks in advance.
The only thing I found is how to tell the android system that I'm starting a call, but I can't find anything about how to actually transmit the voice over a normal phone call. I've tried following the docs with creating a self managed ConnectionService, but it doesn't place a call or do anything. Is it even possible to do something like that or can't i place normal calls without becoming the default phone app?
Thanks in advance.