| 摘要 |
Embodiments of the present invention provide a call control device, an HSS, an AS, and a user service processing method. The call control device includes: a receiving module, configured to: when a call is being initiated to a called UE, receive an access domain confirmation request message sent by a call routing device on a home network, where the access domain confirmation request message carries an identifier of the called UE; a determining module, configured to determine, according to the identifier of the called UE received by the receiving module, that the home network communicates with a visited network of the called UE by using a CS domain on the home network; and a sending module, configured to send an access domain confirmation response message to the call routing device, where the access domain confirmation response message carries instruction information, and the instruction information is used to instruct the call routing device to route the call to the visited network by using the CS domain on the home network. In the embodiments of the present invention, a visited network does not need to return service information to a home network in real time, which can ensure that a service of a called UE can be normally triggered. |
