| 摘要 |
A method and system for routing a Circuit Switched (CS) domain call to a Packet Switched (PS) domain are disclosed. The method includes a Voice Call Continuity Application Server (VCC AS) in the PS domain interacts with a Home Location Register (HLR) in the CS domain to obtain an original called number, allocates a PS domain routing number to a CS domain call, and originates a corresponding PS domain call according to the obtained original called number after the PS domain call, which uses the PS domain routing number as a called party identifier, arrives at the VCC AS in the PS domain. The VCC AS obtains the call information through the interaction with the HLR rather than the interaction with a Service Control Point (SCP). Therefore, a Mobile Switching Center (MSC) needs to communicate with the HLR only, without the requirement to communicate with the SCP, and the MSC in the present disclosure does not need to support intelligent processing.
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