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。
Coloring background voice service is defined as the playing of specific background music during the calling of mobile subscribers.
“他们来这看的东西，充满创造性，我们正利用有好莱坞背景的音效公司与动画制作者，”Gates告诉有关新闻媒体。
"They're seeing this kind of thing, the creativity here, and how we're actually drawing on sound companies and animators who come with a Hollywood background," Gates told the Associated Press.
打开和关闭声音效果或背景音乐。
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