How does WebRTC handle many-to-many connections?

Question

if I am in a room with other 7 users, I am wondering if WebRTC force every user to establish a connection to each one of other participants.

Obviously it would consume s

Answer 1

Have a look at http://tools.ietf.org/html/draft-ietf-rtcweb-use-cases-and-requirements-06 for details about WebRTC use cases. The authors mention a multi-user conferencing solution that uses a central server. So the best solution of establishing multi-user A/V conferences using WebRTC is to have such a central server that does the audio mixing and A/V "broadcasting" to all peers.

This circumvents the bandwidth problems you mention in your question. Currently a whole bunch of start-ups and established service providers are working on WebRTC-based conferencing solutions, just let your favourite web search engine pick some examples.

A TURN server alone doesn't suffice since TURN is only used to relay data for hosts that can't be reached directly (possibly because of firewalls). TURN servers don't terminate WebRTC connections.