Sounds great! What about encryption? If that is used in any environment not in complete control of the user that should be mandatory. E.g. in an open wifi, a shared wifi, or directly over the internet. As the protocol is using RTP anyway, it should be easy to slap on SRTP or DTLS? For the beginning, it may even be sufficient to use a static symmetric key. Or directly use WebRTC which has that already included, but what about the FEC then?