H.323 Gatekeeper function

May 27, 2007 at 8:19 pm | Posted in VoIP | 2 Comments
http://www.iec.org/online/tutorials/h323/topic02.html  

The H.323 standard specifies four kinds of components, which, when networked together, provide the point-to-point and point-to-multipoint multimedia-communication services:

  • terminals
  • gateways
  • gatekeepers
  • multipoint control units (MCUs)

Gatekeepers

A gatekeeper can be considered the brain of the H.323 network. It is the focal point for all calls within the H.323 network. Although they are not required, gatekeepers provide important services such as addressing, authorization and authentication of terminals and gateways; bandwidth management; accounting; billing; and charging. Gatekeepers may also provide call-routing services.

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