Voice intercom call machine, called side, passive side receives the call as a call, to initiate the call.
语音对讲呼叫机，被叫端，被动接收呼叫为呼叫端，主动发起呼叫。
She hesitates, presses the intercom button and hears the call. A voice on the line announces, “Welcome to Laugh Line!
但是又犹豫不决，最后她按下了内部通讯按钮，听到电话中传来一个声音，“欢迎拨打笑料热线！
Intercom allows a user to place a call to a predefined target.
对讲机允许用户进行呼叫到一个预定义的的目标。
Intercom allows a user to place a call to a predefined target.
对讲机允许用户进行呼叫到一个预定义的的目标。
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