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System and method of exchanging identification information for mobile stations

  • US 20040157590A1
  • Filed: 10/31/2003
  • Published: 08/12/2004
  • Est. Priority Date: 01/16/2003
  • Status: Active Grant
First Claim
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1. A method of operating comprising the following steps:

  • detecting when a first network identification code associated with a first mobile device has changed;

    sending a first message via a wireless network to a first service gateway for forwarding by the service gateway to a second mobile station wherein the first message comprises the first network identification code;

    receiving from a second service gateway via the wireless network a second forwarded message that was sent by the second mobile station wherein the second message comprises a second network identification code that is associated with the second mobile station;

    storing the second network identification code; and

    requesting a communication link between the first mobile station and the second mobile station via the wireless network using the second network identification code wherein the communication link does not traverse the first or second service gateway.

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