When either telephone handset is taken off - hook, the remote telephone automatically rings.

当任意一端电话话筒被拿起时, 远处的电话就会自动响起.

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If desire, a telephone handset can be plugged into the tel.

如果需要, 可将电话听筒插入系统背后的话筒插座中.

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Part of the radio waves a mobile telephone handset are absorbed by the human head.

移动电话听筒中发出的部分电波被人的头部所吸收.

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