Turn call-waiting off so your call isn't interrupted.
将呼叫等待关闭,这样通话就不会被打断
2
The service includes caller ID, voice mail, and callwaiting.
这项服务包括呼叫方身份识别、语音邮件和呼叫等待。
《柯林斯英汉双解大词典》
3
Only in America......do we use answering machines to screen calls and then have callwaiting so we won't miss a call from someone we didn't want to talk to in the first place.