Features include caller ID and three-way calling.
功能包括来电显示和三方通话。
One of the quality functions of our latest telephone is three-way calling: you can talk to two people at the same time.
我们最新型电话有许多高品质功能，其中之一就是‘三方通话’：您可以同时跟两个人在电话中交谈。
Enhancements for three-way calling.
增强三方通话的功能。
Switching equipment makes possible the delivery of call-control features such as call hold and three-way calling, while also providing access to peripheral equipment and services, such as voicemail.
交换设备使提交诸如通话保持、三方通话等通话控制功能成为可能，同时也提供对外设和服务(如声邮)的访问。
Switching equipment makes possible the delivery of call-control features such as call hold and three-way calling, while also providing access to peripheral equipment and services, such as voicemail.
交换设备使提交诸如通话保持、三方通话等通话控制功能成为可能，同时也提供对外设和服务(如声邮)的访问。
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