Well put! It's also worth mentioning that because of the network conditions, UDP is a better choice than TCP. The reason is that the retransmissions in TCP are

Well put! It's also worth mentioning that because of the network conditions, UDP is a better choice than TCP. The reason is that the retransmissions in TCP are not helping with real-time video. However every protocol doing this must have fallback from UDP to TCP because there are a surprising amount of corporate firewalls out there that arbitrarily limits the use of UDP. We worked extensively with webrtc, but are recently switching to our own protocol. The main reason is that webrtc is very complex and generic. You can make a better user experience if you adapt the protocol to target your use case. Another reason is that we can more easily detect firewalls and give the user feedback about it.