Patent ID: 8248967

Claim:
A method in a wireless mobile telephone for registering for communications for use of a communications application stored in the wireless mobile telephone, the method comprising: receiving, via a wireless network, a first IP address which is assigned to the wireless mobile telephone; communicating, from the wireless mobile telephone via the wireless network, a request for establishing a secure tunnel connection with a private network through the wireless network; if the secure tunnel connection with the private network through the wireless network is established within a predetermined period of time, then receiving from the private network a second IP address of the private network for assignment to the wireless mobile telephone, and communicating to a server a request for registering for the communications using the second IP address of the private network which is assigned to the wireless mobile telephone; and if the secure tunnel connection with the private network through the wireless network is not established within the predetermined period of time, then communicating to a server a request for registering for the communications using the first IP address that was previously received and assigned to the wireless mobile telephone.