Patent ID: 8626235

Claim:
A method of operating a dual mode terminal comprising a wireless local area network interface and a cellular radio interface, comprising the steps of: camping on the cellular radio interface when idle; when receiving a Page Request message over the cellular radio interface indicating an incoming communication request over the cellular radio interface, performing a determination as to whether wireless local area network coverage is possible from an access point providing wireless local area network cellular communication and, if so: responding, by issuing a wireless local area network communication message to the wireless local area network access point thus determined over the wireless local area network interface to an interworking node; subsequently engaging in a communication initiation procedure, an assign traffic channel procedure and a communication confirmation and communication accepted procedure with the interworking node; and, processing the incoming communication request over the wireless local area network interface towards another party, wherein when the communication is ended, the dual mode terminal going back to camp on the cellular channel.