Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2006-09-26
2006-09-26
Ton, Dang (Department: 2666)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S238000, C370S248000, C379S221010
Reexamination Certificate
active
07113500
ABSTRACT:
A dial plan for a gateway in a packet based voice system provides call re-direct functionality to the system. The dial plan allows a gateway to process all incoming and outgoing calls for an enterprise, thereby minimizing required interface with an existing PBX. The dial plan identifies a given call as an incoming call from a data network, an incoming call from the PSTN, or an outgoing call from the PBX at an enterprise. The dial plan further identifies a desired route for transmitting the call to a desired destination. If the desired route is over a data network, the dial plan tests the route to determine its availability, and if it is not available determines an alternate re-direct route over the PSTN.
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Bollinger William E.
Refka Gary A.
Greer, Burns & Crain LTD
Insors Integrated Communications
Jagannathan Melanie
Ton Dang
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