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Geographic routing of emergency service call center emergency calls

  • US 7,177,397 B2
  • Filed: 03/24/2004
  • Issued: 02/13/2007
  • Est. Priority Date: 11/05/2001
  • Status: Expired due to Term
First Claim
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1. A method for routing a request for emergency services to one of a plurality of public safety answering points, each public safety answering point serving one of a plurality of emergency service zones, comprising:

  • receiving first location information regarding a first request for emergency services;

    determining a first emergency service zone that includes a first location identified by said received first location information;

    associating a first routing number with said first request for emergency services, wherein said first routing number is operable to route said first request for emergency services to a switch associated with said first emergency service zone;

    associating a first request identifier with said first request for emergency services, wherein said first request identifier uniquely identifies said first request for emergency services and wherein said first request identifier uniquely identifies a first one of said plurality of public safety answering points associated with said first emergency service zone; and

    storing at least a portion of said received first location information.

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