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System for routing remote VoIP emergency calls

  • US 20060072549A1
  • Filed: 09/30/2004
  • Published: 04/06/2006
  • Est. Priority Date: 09/30/2004
  • Status: Active Grant
First Claim
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1. A method for routing an emergency call from Customer Premises Equipment (CPE) to a Public Safety Answering Point (PSAP), the method comprising:

  • (a) establishing a session over a packet-switched network between a CPE and a network node, such that the CPE accesses a Public Switched Telephone Network (PSTN) from the network node via a telecommunications switch associated with a first PSAP serving a geographic region different than where the CPE is currently located;

    (b) identifying a telephone number for a second PSAP serving the geographic region in which the CPE is located;

    (c) storing the identified telephone number for later use should an emergency call be placed; and

    , (d) substituting the identified telephone number for a dialed telephone number when the dialed telephone number is indicative of an emergency call.

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