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Methods and systems for providing foreign call back number compatibility for VoIP E9-1-1 calls

  • US 7,756,253 B2
  • Filed: 09/08/2005
  • Issued: 07/13/2010
  • Est. Priority Date: 02/22/2005
  • Status: Expired due to Fees
First Claim
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1. A method for providing foreign call back number compatibility, the method comprising:

  • assigning a non-local telephone number to a subscriber;

    assigning a local telephone number to a subscriber, wherein the subscriber is a voice-over-internet-protocol subscriber; and

    providing periodically both to an automatic location information database the non-local telephone number and the local telephone number associated with the subscriber, wherein the local telephone number is provided from a local telephone number database in a packet switched routing apparatus.

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