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Connection set-up in a communication system

  • US 20040142689A1
  • Filed: 11/05/2003
  • Published: 07/22/2004
  • Est. Priority Date: 11/06/2002
  • Status: Active Grant
First Claim
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1. A method of establishing a connection in a communication system, the connection involving a mobile station subscribing to a first mobile communications network and roaming in a second mobile communications network, the communication system comprising a first connection management entity provided in association with the first mobile communication network and a second connection management entity provided in association with the second mobile communication network, the method comprising:

  • registering the roaming mobile station with the second mobile communications network;

    registering the roaming mobile station with the second connection management entity;

    in response to a request for a connection involving the roaming mobile station, routing signalling that associates with the request to one of the connection management entities;

    setting up a communications link between the first and second mobile communications networks via a third communications network by means of the first and second connection management entities based on said signalling associated with the request; and

    establishing the requested connection by means of the communications link, the first mobile communications network and the second mobile communications network.

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