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EMERGENCY ASSISTANCE CALLING FOR VOICE OVER IP COMMUNICATIONS SYSTEMS

  • US 20100172345A1
  • Filed: 03/20/2008
  • Published: 07/08/2010
  • Est. Priority Date: 03/26/2007
  • Status: Active Grant
First Claim
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1. A process for handling emergency calls from a caller in a voice over IP system, the method comprising:

  • receiving a routing request message including a caller identifier and a callee identifier;

    setting an emergency call flag active in response to said callee identifier matching an emergency call identifier pre-associated with the caller;

    producing an emergency response center identifier in response to said emergency call identifier;

    determining whether said caller identifier is associated with a pre-associated direct inward dialing (DID) identifier;

    producing a direct inward dialing (DID) identifier for said caller by associating a temporary DID identifier with said caller identifier when said emergency call flag is active and it is determined that said caller has no pre-associated DID identifier;

    producing a routing message including said emergency response center identifier and said temporary DID identifier for receipt by a routing controller operable to cause a route to be established between the caller and said emergency response center.

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