Patent ID: 7248851

Claim:
A method for controlling routing information for intellectual peripherals (IPs) in a subscriber-based ring-back-tone service, the routing information being controlled by a home location register (HLR) while the subscriber-based ring-back-tone service is processed using a terminating mobile switching center, comprising the steps of: (a) classifying the routing information to be routed to the IPs corresponding to subscribers on a subscriber telephone number-by-number basis, a subscriber telephone office number-by-number basis, a subscriber telephone office number group-by-group basis or a subscriber's major activity area-by-area basis in response to a selection, and setting and registering the classified routing information in the HLR; and (b) when the HLR receives a location registration request message from a terminal of an arbitrary subscriber, allowing the HLR to contain, within a response message to the location registration request message, a corresponding routing information item to be routed to an IP corresponding to the subscriber's terminal among the classified, set and registered routing information and to provide the response message to a corresponding mobile switching center.