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Description:
H.323 is a recommendation published by the International Telecommunications Union and defines the interworking of a series network elements and protocols to allow multimedia transmission (voice, video, chat, file sharing, whiteboarding etc.) through an unreliable packet-based network. Essentially, H.323 ties together a number of existing recommendations, and must be read in conjunction with many other publications. Often, H.323 is considered to be just the call signalling element of a multimedia call, responsible for setting up and clearing down calls. Clearly, the scope of H.323 is much broader. This document attempts to offer a summary H.323.
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