Abstract text

A method and a device for providing a call forwarding service for users are provided. The method for providing a call forwarding service for users includes the following steps. An IP multimedia subsystem (IMS) network entity receives a call towards a user who accesses from a circuit switched (CS) domain; the IMS network entity acquires a current session connection state of the user or the user's desire of answering the call; and the call forwarding service is provided according to the obtained session connection state of the user or the user's desire. Thus, a call forwarding service in an IMS domain for a called user who accesses from a CS domain is realized.