Patent ID: 7395065

Claim:
A wireless communication unit comprising: a transceiver suitable to support an air interface with an enterprise network and an air interface with a wireless wide area network (WWAN); a memory operable to store information suitable for identifying one or more of a plurality of enterprise controllers, each of the plurality of enterprise controllers for controlling a corresponding one of a plurality of wireless local area networks (WLAN), the plurality of enterprise controllers comprising a home enterprise controller for the wireless communication unit and a visited enterprise controller for controlling a visited one of the plurality of WLANs that is visited by the wireless communication unit; and a controller configured and cooperatively operable with the memory and the transceiver to facilitate: operating on the visited one of the plurality WLANs; setting up a call while operating on the visited one of the plurality of WLANs, obtaining information to facilitate identification of the visited enterprise controller, and using the information to hand over the call from one to another of the enterprise network and the WWAN.