Patent ID: 7471783
Filing Date: 2008-12-30
Classification: H04L,H04M

Abstract:
1. A method for replicating a ring back tone (RBT) subscribed by a called party to a calling party over a network system, wherein the network system has an application server (AS), a media resource server (MRS), an RBT platform and a softswitch in communication with each other, comprising: receiving a call to a called party initiated by a calling party, by the AS; sending a Play and Collect request to the MRS; playing an RBT subscribed by the called party to the calling party and obtaining a Replicate RBT request initiated by the calling party according to the received Play and Collect request; receiving the Replicate RBT request obtained and sent by the MRS, by the AS; and sending a Replicate RBT command to an RBT platform by the AS according to the received Replicate RBT request, the Replicate RBT command carrying RBT replication information and instructing the RBT platform to replicate the requested RBT to an information library of the calling party, wherein the step of obtaining the Replicate RBT request initiated by the calling party comprises: sending the Replicate RBT request in the form of a dual-tone multi-frequency (DTMF) signal to a media gateway (MG); and sending the received DTMF signal to the MRS transparently, or converting the received DTMF signal into a Real-Time Transport Protocol (RTP) media stream or a Real-Time Transport Control Protocol (RTCP) media stream and sending the converted media stream to the MRS, by the MG.