22 January 1999 Gatekeeper discovery mechanism for H.323 systems
Author Affiliations +
Proceedings Volume 3528, Multimedia Systems and Applications; (1999) https://doi.org/10.1117/12.337421
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States
Abstract
Multimedia communications over packet switched networks - commonly referred to as Internet telephony - has generated immense interest in recent years. The International Telecommunication Union is currently developing the H.323 umbrella of standards for this purpose. In the H-323 standard, a gatekeeper is a control entity that performs functions such as address translation, bandwidth management etc. A H.323 terminal needs to discover a suitable gatekeeper and register with it. When a H.3232 terminal wishes to call another H.323 terminal, communication between the gatekeepers result in the determination of the transport layer address of the destination terminal for sending the connection setup message to. There is thus a need not only for terminals to discover gatekeepers but also for gatekeepers to discover other gatekeepers. In this paper, we propose a mechanism whereby terminals and gatekeepers can discover other gatekeepers. The proposed mechanisms result in efficient use of network bandwidth within the administrative domain. The security issues involved in such communications are discussed, and a proposal is made to establish a shared secret during the discovery process. Such a shared secret may be used for subsequent confidentiality or authentication of messages.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Senthil Sengodan, "Gatekeeper discovery mechanism for H.323 systems", Proc. SPIE 3528, Multimedia Systems and Applications, (22 January 1999); doi: 10.1117/12.337421; https://doi.org/10.1117/12.337421
PROCEEDINGS
8 PAGES


SHARE
RELATED CONTENT

Standardization efforts in IP telephony
Proceedings of SPIE (November 22 1999)
Gigabit ATM: another technical mistake?
Proceedings of SPIE (September 16 1998)
Quality of service in wireless internet architectures
Proceedings of SPIE (July 27 2001)
SF SCTP a new transport protocol to support QoS...
Proceedings of SPIE (May 10 2006)

Back to Top