Domain and service based update messaging

Details Domain and service based update messaging Domain and service based update messaging

2011-04-12

2011-04-12

Tsang, Fan (Department: 2614)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S401000

Reexamination Certificate

active

07924812

ABSTRACT:
A communication network comprising a plurality of domains, a first location server of a first domain of the plurality of domains, and a first gateway coupled to the first location server and configured to interwork communications between the first domain and a second domain of the plurality of domains wherein the plurality of domains provide a plurality of services. The first gateway, responsive to a first status change associated with a first service of the plurality of services provided by the second domain, transfers a first update message to the first location server wherein the first update message indicates the first gateway, the first status change, the second domain, and the first service. The first location server, responsive to receiving the first update message, processes the first update message to determine a third domain of the plurality of other domains that provides the first service and transfers a second update message to a second location server of the third domain wherein the second update message indicates the first gateway, the first status change, the second domain, and the first service.

REFERENCES:
patent: 6215790 (2001-04-01), Voit et al.
patent: 2002/0167946 (2002-11-01), Gallant
patent: 2002/0169887 (2002-11-01), MeLampy et al.
patent: 2003/0095542 (2003-05-01), Chang et al.
Schlesener, Matthew C., “Performance Evaluation of Telephony Routing over IP (TRIP),” submitted to the Department of Electrical Engineering and Computer Science and the Faculty of the Graduate School of the University of Kansas in partial fulfillment of the requirements for the degree of Master's of Science, Dec. 2002.

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