J. Lennox <a href="http://www.ietf.org/rfc/rfc4572.txt"><cite> Connection-Oriented Media Transport over the Transport Layer Security (TLS) Protocol in the Session Description Protocol (SDP) </cite></a> July 2006. Internet RFC 4572. URL: <a href="http://www.ietf.org/rfc/rfc4572.txt">http://www.ietf.org/rfc/rfc4572.txt</a>