A METHOD, A MULTIMEDIA NETWORK GATEWAY CONTROL DEVICE AND AN APPLICATION SERVER FOR IMPLEMENTING INTERCOMMUNICATION OF COLOR RING BACK TONE

摘要

A method, a multimedia network gateway control device and an application server for implementing intercommunication of color ring back tone are provided. When the user of the circuit switched domain initiates a call to the user of multimedia ring back tone in the multimedia subsystem, the multimedia ring back tone service is triggered. The method includes the following steps: receiving the signal sent by the multimedia ring back tone application server (201), the signal including the information of the video ring back tone; if determining to play the video ring back tone to the calling terminal, informing the mobile services switching center to connect the calling terminal (202). The multimedia gateway control device includes: the receiving unit, the determining unit, and the informing unit. The multimedia ring back tone application server includes: the receiving unit, the determining unit, and the adding or connecting unit. The problem of playing the video ring back tone when the user of Circuit Switched domain calls the user of IMS domain at that time of network intercommunication is resolved.