Abstract: A system is disclosed for providing a bell to a call-terminating terminal that includes a call-originating terminal for generating at least one group, setting group list information which includes additional services usable by the generated group and predetermined terminals belonging to the generated group, registering the set group list information, and transmitting a call request to a terminal belonging to the group; a first server for receiving the call request from the call-originating at a midway point of a route of the call request, acquiring the group list information registered by the call-originating terminal, constructing an additional service menu in accordance with the acquired group list information, and providing the constructed additional service menu through a bell; and the call-terminating terminal for receiving information of the additional service menu constructed by the first server, and constructing an additional service menu usable by the call-originating terminal based on the informatio

Abstract: A mobile communication system and method for maintaining a call setup for a domain transfer are provided. The mobile communication system includes a calling terminal and a VCC server. The calling terminal notifies, when performing a domain transfer during reception of a ring-back tone in a call setup process with a called terminal, the domain transfer to the VCC server, and receives a response message for a call setup request from the VCC server to perform a call connection with the called terminal. The VCC server performs, when receiving a domain transfer notification message from the calling terminal, a call setup process with the domain to which the calling terminal transferred while maintaining the previous call setup process performed before the domain transfer, and releases the previous call setup process.

Abstract: A system is disclosed for providing a bell to a call-terminating terminal that includes a call-originating terminal for generating at least one group, setting group list information which includes additional services usable by the generated group and predetermined terminals belonging to the generated group, registering the set group list information, and transmitting a call request to a terminal belonging to the group; a first server for receiving the call request from the call-originating at a midway point of a route of the call request, acquiring the group list information registered by the call-originating terminal, constructing an additional service menu in accordance with the acquired group list information, and providing the constructed additional service menu through a bell; and the call-terminating terminal for receiving information of the additional service menu constructed by the first server, and constructing an additional service menu usable by the call-originating terminal based on the informatio