Patent ID: 7242757

Claim:
A method of providing an arbitrary sound as an RBT (RingBack Tone) in a communication network, comprising: a first step, conducted by an HLR (Home Location Register), of furnishing a call-originating exchanger with information on whether or not an RBT is to be replaced for a terminal through a response to a location request message received from the call-originating exchanger that sends the location request message to the HLR when a call connection is requested to the terminal; a second step, conducted by the call-originating exchanger, of requesting a trunk connection to a call- terminating exchanger based on the response, and further requesting another trunk connection to a sound providing means based on the information with reference to preset routing information to the sound providing means while furnishing the sound providing means with information to identify the terminal; and a third step, conducted by the sound providing means, of selecting an RBT-replacing sound based on the terminal identifying information, and providing the selected RBT-replacing sound for a caller through the call-originating exchanger the trunk connection is made to.