Technical implementation, network architecture, signaling process of coloring background music service are analyzed in detail, and a solution is given.
本文对背景音业务的技术实现、网络结构、信令流程进行了详细的分析，并提出了一种实现方案。
Coloring background voice service is defined as the playing of specific background music during the calling of mobile subscribers.
背景音业务指电话用户在双方通话的过程中，由系统播放特殊的背景音效果。
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