Chan, Anthony Hing-HungAnthony Hing-HungChanXiang, Z. J.Han, J.2022-06-232022-06-232010-11-11https://repository.sfu.edu.hk/handle/sfu/3500International Patent Publication No.: WO 2010/127639 A1In accordance with an embodiment, a method of operating a first network configured to communicate with a first interface of a multi-interface user device is disclosed. The first network receives a first message from the user device, where the first message requests that messages for the user device be forwarded via a second network. The first network receives a second message for user device and forwards the second message to the second network.entechnical documentation