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APPARATUS AND METHOD FOR ENABLING OPTIMIZED GATEWAY SELECTION FOR INTER-WORKING BETWEEN CIRCUIT-SWITCHED AND INTERNET TELEPHONY

  • US 20100091765A1
  • Filed: 12/15/2009
  • Published: 04/15/2010
  • Est. Priority Date: 01/23/2002
  • Status: Active Grant
First Claim
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1. A method of selecting a gateway to support a call from a user of a first network to a user of a second network, the method comprising the steps of:

  • querying a unified location management device having stored therein location information associated with the user of the second network; and

    selecting the gateway based on the location information provided by the unified location management device;

    whereinin the case of an internet telephony device calling a mobile device, the unified location manager operates as an inbound proxy for a given IP domain to allow selection of a location dependent routable temporary phone number such that a call path from the internet telephony device to the mobile device bypasses the mobile device'"'"'s home MSC or gateway MSC.

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