RFC 3550 RTP July 2003 If Just about every application results in its CNAME independently, the ensuing CNAMEs might not be similar as would be needed to supply a binding across multiple media tools belonging to one participant in a set of connected RTP sessions. If cross-media binding is needed, https://net33rtp15925.ttblogs.com/9209000/the-basic-principles-of-net33-rtp