Does the term on-hook refer to the condition of the line when a telephone handset is lifted, or taken off its hook?

Name: Does the term on-hook refer to the condition of the line when a telephone handset is lifted, or taken off its hook?
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Question

Quizplus · Accepted Answer

The term "on-hook" refers to the condition of the line when the telephone handset is placed on its base or hook, indicating that the phone is not in use.

Does the Term On-Hook Refer to the Condition of the Line