Patent ID: 7103333

Claim:
A method of operating comprising the following steps: detecting when a first network identification code associated with a first mobile station has changed; sending a first message via a wireless network to a first service gateway for forwarding by the first 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 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; wherein a message type for the first and second messages is selected from a group comprising an email message, a SMS message and a HTTP message, and wherein the message type for the second message is the same as the message type for the first message; 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.