H.323 is an ITU standard multimedia conferencing protocol, which includes voice, video, and data conferencing, for use over packet-switched networks.
H.323 was the first standard for VoIP, but is being supplanted by SIP.
H.323 defines five components of a multimedia network: Terminals Multipoint Control Units (MCUs) Gateways Gatekeeper Border Elements
Terminals are telephone and PC equipment which connect end-users to the H.323 network.
MCUs are responsible for managing...
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