I'm trying to implement WebRTC on Android for p2p communication. Then I tried to clone one of the examples from here. In that project, I noticed that he used a STUN server to create peer a connection between devices.
private val iceServer = listOf(
PeerConnection.IceServer.builder("stun:stun.l.google.com:19302").createIceServer(),
)
I tried to launch the app then it works fine until I change one of my devices' connectivity from local Wifi to 4G mobile data. This definitely means that 2 devices are behind different networks. So I changed my ICE server to a public TURN server from openrelayproject. I've tested the TURN server and it works properly based on trickle ICE.
However, the video call performed in the program still not working and the recipient screen keeps getting blank. I also tried to use TCP in the TURN server like he does, but no difference.
Is there something I could do to fix this? I also don't know how to pass the data to the TURN server, or is it done automatically? Any code example would be a great help.
