Patent ID: 7542427
Filing Date: 2009-06-02
Classification: H04L,H04M

Abstract:
1. A computer program product for use with a gateway to be used with a packet based voice system, the gateway connected to a PBX and to a data network, the computer program product comprising computer executable instructions stored on a computer readable memory, the program instructions when executed causing the gateway to carry out the steps comprising: receive a call and query said call for a termination number; use said termination number to determine a desired route for said call by determining if said call should be routed to the PSTN, PBX, or data network; and, determine if said desired route is available if said desired route is over the data network and transmitting said call over the data network if said desired route is available, and to transmit said call over the PSTN if said desired route is not available; wherein the program instructions when executed further cause the gateway to: