Abstract :
The H.323 standard provides a
foundation for audio, video, and data communications across IP-based networks,
including the Internet. By complying with H.323, multimedia products and
applications from multiple vendors can interoperate, allowing users to
communicate without concern for compatibility. H.323 will be the keystone for
LAN-based products for consumer, business, entertainment, and professional
applications.
The H.323 specification was approved in
1996 by the ITU’s Study Group 16. Version 2 was approved in January 1998. The
standard is broad in scope and includes both stand-alone devices and embedded
personal computer technology as well as point-to-point and multipoint conferences. H.323 also addresses call
control, multimedia management, and bandwidth management as well as interfaces
between LANs and other networks.
H.323 is part of a larger series of
communications standards that enable videoconferencing across a range of networks. Known as H.32X, this
series includes H.320 and H.324, which address ISDN and PSTN communications,
respectively.
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