RFC 3550 RTP July 2003 If Every software creates its CNAME independently, the resulting CNAMEs will not be identical as can be needed to supply a binding across a number of media tools belonging to one participant in a very set of similar RTP sessions. If cross-media binding is needed, https://devinpbnwg.answerblogs.com/29847647/the-smart-trick-of-net33-rtp-that-nobody-is-discussing