call on waiting list预约挂号
call l waiting电话插播
Call Not Waiting即叩即问
call-waiting tone呼叫等待音
internet call waiting因特网呼叫等待;呼叫等待;网路插接;因特网呼唤等待
CAW CAll Waiting呼叫等待
Call Waiting CW呼叫等待
call waiting indication呼叫等候指示;呼叫等待指示
Call Waiting Lamp呼叫等待指示灯
Disposal of Call Waiting Software is used in the case that a new call request arrives when the 2B channels are used to access Internet. A new method is adopted in the implementation of Data Link Test Software.
呼叫等待处理完成的主要功能是：当用户的2B通路都被占用时，如果有新呼叫到来，用户可以选择接受或者拒绝。
参考来源 - ISDN终端应用层软件设计N-UNCOUNT（不可数名词） Call waiting is a telephone service that sends you a signal if another call arrives while you are already on the phone. 呼叫等待
The service includes caller ID, voice mail, and call waiting.
这项服务包括呼叫方身份识别、语音邮件和呼叫等待。