Enhanced E911 network access for call centers

  • US 8,406,728 B2
  • Filed: 04/02/2012
  • Issued: 03/26/2013
  • Est. Priority Date: 02/16/2006
  • Status: Active Grant
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First Claim
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1. A method of providing a telematics call center with access to an Enhanced 911 network supporting a public safety answering point (PSAP), comprising:

  • receiving a switched phone call from a telematics call center, via a switched telephone network, at a VoIP call server;

    converting, at said VoIP call server, said switched telephone call into an Internet Protocol (IP) based packetized phone call;

    querying a VoIP positioning center for call routing information to route said SIP packetized phone call to a particular PSAP, said VoIP positioning center query comprising a telematics call center telephone number;

    receiving said call routing information from said VoIP positioning center; and

    establishing, via said VoIP call server, a conference call with said IP based packetized phone call, said telematics call center, and said particular PSAP based on said call routing information.

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