https://www.sococo.com/blog/webrtc-signaling-here-be-dragons https://www.sococo.com/blog/webrtc-signaling-here-be-dragons is a good write up of the complexities

https://www.sococo.com/blog/webrtc-signaling-here-be-dragons https://www.sococo.com/blog/webrtc-signaling-here-be-dragons is a good write up of the complexities here. And even with all this work, Sococo is far from perfect - we use it many times a day at my startup, and connections fail to establish all the time. Not an easy task.