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    • 42. 发明申请
    • 3GPP网络的彩铃业务实现方法及系统
    • WO2008017190A1
    • 2008-02-14
    • PCT/CN2006/001733
    • 2006-07-18
    • 中兴通讯股份有限公司刘海军
    • 刘海军
    • H04M3/42
    • H04M7/006H04M3/42017
    • A method and a system for realizing colorful ring back tone (RBT) service in 3GPP network, comprise: the subscribed data about the user of the colorful RBT service is set in HSS OR HLR about the user of the colorful RBT service (S102); the calling terminal makes a call to the user of the colorful RBT service acted as called user, the MSC actives the colorful RBT driving service through the SCP and connects the call to the called terminal (S104); the SCP obtains that the called terminal is in idle state through the MSC and indicates the MSC to establish the voice link to the colorful RBT service center, and the colorful RBT service center begins to play the RBT (S106); the SCP obtains that the state of the called terminal is changed through the MSC and indicates the MSC to disconnect the voice link with the colorful RBT service center, then the voice communication between the calling user and the called user is made or finished (S108). The subscribed data can include service key, address of the SCP, and T-CSI or VT-CSI flag. By adopting the enhanced subscribing method in the present invention, the compatible with the originally service activity is kept and the problem of the voice link promixity is settled.