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Advanced intelligent signal telephone number routing

  • US 6,542,598 B2
  • Filed: 10/15/2001
  • Issued: 04/01/2003
  • Est. Priority Date: 02/28/1996
  • Status: Expired due to Fees
First Claim
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1. A method for routing an originating call to one of a plurality of subscriber locations within a telecommunications network, the method comprising:

  • ascertaining a geographic location of a calling party in accordance with an originating telephone number of the calling party; and

    determining, within a service control point, which of the plurality of subscriber locations serves the geographic location of the calling party, the determining including comparing the ascertained geographic location with at least one predefined subscriber service area, the comparing comprising first comparing the ascertained geographic location to a first predefined subscriber service area and, if no match is found, comparing the ascertained geographic location to a second expanded predefined subscriber service area, wherein, when no matches are found the call request is forwarded to a predetermined default routing telephone number;

    wherein, when a match is found, the call request is forwarded to a routing telephone number associated with the matched predefined subscriber service area.

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