Title: Real Time Control Protocol (RTCP) attribute in Session Description Protocol (SDP)
Author(s): C. Huitema.
Status: PROPOSED STANDARD
Date: Oct 2003
Length: 17270
The Session Description Protocol (SDP) is used to describe the parameters of media streams used in multimedia sessions. When a session requires multiple ports, SDP assumes that these ports have consecutive numbers. However, when the session crosses a network address translation device that also uses port mapping, the ordering of ports can be destroyed by the translation. To handle this, we propose an extension attribute to SDP.
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