Patent ID: 7302258

Claim:
A method for transitioning a call with a mobile terminal from a packet network to a cellular network, wherein the call is initially established between a remote device and the mobile terminal via a local wireless adaptor coupled to a packet-based network, the method comprising: a) determining the call should be transferred to the mobile terminal via the cellular network; b) initiating a first connection between a first media gateway and the mobile terminal via the cellular network, wherein the call is initially established to comprise a remote connection between the remote device and a second media gateway and a local connection between the second media gateway and the mobile terminal via the local wireless adaptor over the packet-based network; and c) effecting a transfer of the call to the first connection between the first media gateway and the mobile terminal, wherein the effecting the transfer of the call further comprises establishing a new connection between the first and second media gateways to effectively connect the first connection between the first media gateway and the mobile terminal via the cellular network to the remote connection between the remote device and the second media gateway.