Difference between revisions of "Off-hook dialing"
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Revision as of 15:16, 21 September 2006
The condition that exists when a telephone or other user instrument is in use, i.e., during dialing or communicating. Note: off-hook originally referred to the condition that prevailed when telephones had a separate earpiece (i.e., receiver) which was removed from its switchhook. The weight of the receiver no longer depresses the spring loaded switchhook thereby connecting the instrument to the telephone line.
