Patent ID: 7061894
Filing Date: 2006-06-13
Classification: H04L,H04M,H04W

Abstract:
1. A registration method for providing voice communications between a wireless communication device and an end terminal in a packet data network, comprising: performing a location update of the wireless communication device; authenticating the identity of the wireless communication device; performing a ciphering procedure for the wireless communication device; notifying a Voice-over-Internet-Protocol Mobile Switching Center (“VMSC”) of the registration of the wireless communication device, the VMSC communicating with the wireless communication device through a circuit-switched network and communicating with the end terminal through a packet-switched network; activating a communication between the VMSC and the packet data network; performing a registration of the wireless communication device to the packet data network; and notifying the wireless communication device of the completion of location update, wherein an activation of the communication between the VMSC and the packet data network comprises: