Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2006-03-21
2006-03-21
Smith, Creighton (Department: 2645)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S401000, C370S270000, C379S265090
Reexamination Certificate
active
07016341
ABSTRACT:
A Multimedia Telecommunications Call Center provides integrated video, audio, data and telephony functionality, together with connectivity to the Internet, ISCN, PSTN, and other wide-area networks. The Call Center includes a Local Area Network having a Gateway and a Gatekeeper. Incoming multimedia calls are received by the Gateway and are permitted onto the network under control of the Gateway and are permitted onto the network under control of the Gatekeeper. Communications between the Gateway and the Gatekeeper preferably take place across the network and comply with the ITU H.323 standard protocol. Communications between the Gatekeeper and the Call Manager preferably take place across the network and comply with the European Computer Manufacturers Association CSTA standard protocol.
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Lang Russell J.
Potter John M M
British Telecommunications public limited company
Nixon & Vanderhye P.C.
Smith Creighton
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