Terms for subject Telephony (9 entries)

通话预告	announce a call
键座	key shelf
电键盘	key shelf
转接〔具有分接头的〕电路	through circuit
啸声增音机	howl repeater
空〔闲〕线	disengaged line
接通通知	announce a call
炭精〔粒〕送话器	carbon transmitter
对讲〔两户合用〕电话线	two-party line