System and method for realizing multimedia ring back tone service

The invention relates to a system for realizing multimedia backward bell service and relative method. Wherein, it comprises the third-generation 3G communicate network, a multimedia backward bell MRBTplatform for storing the multimedia backward bell of 3G communicate network, and a mobile service exchange center MSC Server that setting the VIG function of multimedia gateway; the MRBT platform viathe MSC server is connected to the multimedia gateway that managing the terminal of 3G communicate network; the MSC Server with VIG function is used to build the communicate chain circuit from the terminal, MGW, MSC Server to the MRBT platform, when the terminal initializes calling and before receiving calling; the MRBT platform via said communicate chain circuit displays multimedia backward belltothe terminal.