Chapter 5
Media Processing
IP networks form the foundation for exchanging voice and video packets. There has to be a set of rules and procedures to provide an overarching framework for transmission of real-time media information between participants in a communication session. Real-Time Transport Protocol (RTP) was developed for precisely this reason, and it has seen overwhelming acceptance across the industry. RTP and many of its extensions have been built and standardized over many years to fit a myriad of different situations.
SBCs are devices that have operations defined in both the media and signaling planes, with the ability to transform signaling and media and to strongly influence session characteristics. Over the years, SBCs have been ...
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