I have experience in implement webRTC features on react-native.
I made an app with complete video call and audio call features with the latest react-native-webrtc version (1.75.1, 1.69.2, 1.67.1)
Include related features, as receiving a call feature, switch camera, pure audio call, etc…
I also built the signal server for video calls and audio calls.
If you are interesting, or you need any questions about react-native-webrtc.
Please contact me: firstname.lastname@example.org
I can show you my sample project and server