off hook circuit

常見例句

雙語例句

• The automatic two-way signaling used on these circuits causes the station instrument on one end of the circuit to ring when the station instrument on the other end goes off-hook.
  這些線路上使用的自動雙向信令引起線路一端的電話機振鈴，而另一端的電話機摘機應答。
• By the method, when the telephone has a long time without conversation, and the hook switch circuit is in off-hook state, the switch circuit can be changed into on-hook state automatically.
  藉由此自動掛機的方法，當電話系統(tǒng)在持續(xù)一預設時間未進行正常通話的時候，且叉簧電路為摘機狀態(tài)時，叉簧電路仍可自動切換成掛機狀態(tài)。
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