Off-hook

（重定向自Off hook）

In telephony, the term off-hook has the following meanings:

On an ordinary two-wire telephone line, off-hook status is communicated to the telephone exchange by a resistance short across the pair. When an off-hook condition persists without dialing, for example because the handset has fallen off or the cable has been flooded, it is treated as a permanent loop or permanent signal.

单词	Off hook
释义	Off hook 原声例句瑞克与莫蒂第三季（双语） Um, I'm gonna go ahead and let you off the hook for the $70 late fee. 你欠的70元滞纳金就算了。英语百科 Off-hook （重定向自Off hook） In telephony, the term off-hook has the following meanings: On an ordinary two-wire telephone line, off-hook status is communicated to the telephone exchange by a resistance short across the pair. When an off-hook condition persists without dialing, for example because the handset has fallen off or the cable has been flooded, it is treated as a permanent loop or permanent signal.
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