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Methods, systems, and computer program products for providing transcoder free operation (TrFO) and interworking between unlicensed mobile access (UMA) and universal mobile telecommunications system (UMTS) call legs using a media gateway

  • US 20070165636A1
  • Filed: 02/09/2006
  • Published: 07/19/2007
  • Est. Priority Date: 01/17/2006
  • Status: Active Grant
First Claim
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1. A method for establishing a transcoding free connection in a media gateway for a connection having an unlicensed mobile access (UMA) leg and a universal mobile telecommunications service (UMTS) leg, the method comprising:

  • (a) determining whether codec configurations used by different legs of a UMA-UMTS connection are compatible;

    (b) in response to determining that the codec configurations are compatible, determining whether rate control is required to establish a transcoding free connection;

    (c) in response to determining that rate control is required, issuing a rate control request to at least one of the UMTS and UMA legs;

    (d) determining whether the rate control request is successful; and

    (e) in response to determining that the rate control request is successful, establishing a transcoding free connection between the UMTS and the UMA leg in the media gateway.

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