sbilgi Thu, 01/17/2008 - 11:55
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H.323 and Media Gateway Control Protocol (MGCP) are two protocol suites that the industry uses to support VoIP. H.323 recommendations are supported by the International Telecommunication Union (ITU-T) and MGCP is supported by the Internet Engineering Task Force (IETF). H.323 and MGCP are not stand-alone protocols. These protocols depend on many other supporting protocols in order to complete their operations. Whether to use H.323 or MGCP is a customer-specific decision since they have very similar features. This document discusses the advantages of H.323 and MGCP and what each one supports. Check the document http://www.cisco.com/en/US/tech/tk1077/technologies_tech_note09186a00806fedbe.shtml for more information.

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