Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2006-11-14
2009-12-22
Nguyen, Hanh (Department: 2416)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S392000, C379S093010
Reexamination Certificate
active
07636349
ABSTRACT:
A method for routing calls in a packet-based network includes receiving a call request at a first call manager from a device that is coupled to the packet-based network. The call request includes a telephone number associated with a plurality of telephony devices that are coupled to the packet-based network and that are controlled by a number of call managers. The method also includes determining a line control process associated with the telephone number that is included in the call request and communicating the call request to the line control process. The method further includes determining a device process controlling each telephony device that is associated with the telephone number included in the call request and communicating the call request from the line control process to the device processes.
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Alexander John D
Beathard Roger V
Jiang Qing
Pearce Christopher E.
Pruski Kenneth P
Baker & Botts L.L.P.
Cisco Technology Inc.
Nguyen Hanh
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