Patent ID: 8547912

Claim:
A method of assigning a single packet address to a wireless communication device in a communication system comprising a first wireless network and a second wireless network, the method comprising: in the wireless communication device, transferring a first network service request to a router in the first wireless network, wherein the first network service request includes a first network user identifier; in the router, transferring an authorization request to an authorization system, wherein the authorization request includes the first network user identifier; in the authorization system, determining whether the wireless communication device associated with the first network user identifier comprises dual-mode functionality, and determining whether a session for the second wireless network exists based on the first network user identifier; if the session for the second wireless network does not exist, then in the authorization system, translating the first network user identifier into a second network user identifier, transferring a pre-authorization request that includes the second network user identifier to a subscriber system, wherein the subscriber system generates an information block in response to the pre-authorization request, receiving the information block in response to the pre-authorization request, wherein the information block comprises the second network user identifier and an authorization key, and transferring a request for a packet address enabled for the second wireless network to the router; and in the router, transferring a first network service response to the wireless communication device, wherein the first network service response includes the packet address enabled for the second wireless network.