Chapter 10. The Media Plane
We have already seen that IP multimedia communications comprise two planes: the signaling plane and the media plane. We dealt with the signaling plane in the chapters dedicated to SIP. Now we will look into the media plane. First we will introduce general concepts related to the media plane, and then we will examine two concrete examples of protocols used in the media plane for IP multimedia services: RTP and MSRP.
Overview of the Media Plane
As has been stated many times already, SIP plays the part of the signaling protocol in IP multimedia communication services. A key aspect is that SIP is used to control multimedia communications irrespective of the actual nature of the session; voice, video, messaging, a game, and ...