Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-09-06
2005-09-06
Chin, Wellington (Department: 2664)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S357000
Reexamination Certificate
active
06940857
ABSTRACT:
A system and method directed to providing a broadcast/multicast in a circuit-switched network. An exemplary method includes receiving at a first switch a call directed to a called number; determining whether the first switch has an active connection to the called number; if the first switch has an active connection to the called number, merging the call with the active connection; and if the first switch does not have an active connection to the called number, routing the call to a next switch. The process is repeated as necessary until a next switch with an active connection is identified and/or the switch serving the called number is reached. The present invention conserves network resources and increases network efficiency, in part, by not carrying a call any further than is necessary for the caller to participate in a broadcast/multicast.
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Infinity Broadcasting Corporation v. Wayne Kirkwood d/b/a Media Dial-Up,965 F. Supp. 553(S.D.N.Y. 1997), pp. 553-561.
AT&T Corp.
Chin Wellington
Michael Haynes PLC
Nguyen Son X.
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