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Method and system for routing telephone calls between a public switched telephone network and an internet protocol network

DC
  • US 6,775,269 B1
  • Filed: 03/29/2000
  • Issued: 08/10/2004
  • Est. Priority Date: 03/30/1999
  • Status: Expired due to Term
First Claim
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1. A method for routing a telephone call originating at a first network that utilizes a first signaling protocol to a termination in a second network that uses a second signaling protocol comprising:

  • receiving a service request associated with a calling party from the first network;

    translating the service request;

    determining a route for processing the service request over the second network;

    generating signaling specifying the determined route; and

    wherein determining the route for processing the request over the second network comprises;

    determining an address for the calling party;

    accessing a table associated with the address, the table comprising a plurality of pointers to a plurality of additional tables;

    accessing at least one of the additional tables specified by at least one of the pointers; and

    in response to accessing the at least one of the additional tables, determining the route for processing the request based on the at least one of the additional tables.

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