Patent ID: 7885657
Filing Date: 2011-02-08
Classification: H04W

Abstract:
1. A computer implemented method, comprising: determining, at a wireless local area network base station, that a mobile device capable of communicating via a wireless wide area network and via the wireless local area network is within a range of the wireless local area network base station; sending a registration message including an internet protocol address from the wireless local area network base station to the mobile device, wherein the mobile device sends a call forwarding message from the mobile device to a network element of the wireless wide area network after receiving the registration message, and wherein the call forwarding message redirects a call destined for the mobile device to the wireless local area network base station for transmission to the mobile device; receiving the redirected call from the wireless wide area network; and sending the redirected call to the mobile device when the mobile device is within the range of the wireless local area network base station but not sending the redirected call from the wireless local area network to the mobile device when the mobile device is outside the range of the wireless local area network base station, wherein the mobile device sends a cancel call forwarding message to the network element of the wireless wide area network when the mobile device is outside the range of the wireless local area network base station.