Nice are you going to try to get g.711 audio and rtp working?

I have tried that in the beginning, but struggled with sdp and rtp. At the moment i do not plan to implement it myself.
A receiving rtp socket is already set up, but all received data is discarded. No data is sent and the rtp reports ...

Hello,

i just cleaned up my project a bit and uploaded it to github, but it is still work in progress:
https://github.com/chrta/sip_call

When the door bell rings, a VoIP call is initiated. It keeps ringing for a predefined duration or until someone picks up the phone.

Hardware
I used a simple ...