METHOD AND SYSTEM FOR INTER-TECHNOLOGY HANDOFF OF AN ACCESS TERMINAL

摘要

A communication system (100) utilizes an interface terminating at a base station (BS) (112) of a circuit services network (110) and a wireless packet data node (134) in a packet data network (130) and DOS over DBM signaling between the BS and an access terminal (AT) (102), thereby permitting the communication system to tunnel SIP messaging between the AT and an IMS network via the BS and a packet data node and to tunnel HRPD traffic channel information and an HRPD identifier from the packet data network to the AT via the BS. Thus, a handoff of a voice call involving the AT may be initiated from the circuit services network to the packet data network prior to the AT establishing a call dialogue with the packet data network.