The call HOLD (HOLD) supplementary service, allows a user to interrupt communications on an existing call and then subsequently, if desired, re-establish communications.
呼叫保持补充业务能允许一个用户中断一个已经存在的呼叫的通信，随后在要求时仍可重建通信。
Service is busy now, please hold on and your call will be answered in approximate 5 minutes.
现在服务正忙，请不要挂机，我们将在五分钟接听您的电话。
Service is busy now, please hold on and your call will be answered in approximate 5 minutes.
现在服务正忙，请不要挂机，我们将在五分钟接听您的电话。
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