switch hook


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switch hook

[′swich ‚hu̇k]
(electricity)
A switch on a telephone set that operates when the receiver is placed on the hook or removed from it.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

switch hook

Also called a "hook switch," it is the control mechanism that answers and hangs up a call on a telephone. When you place the handset in the telephone cradle, it depresses the switch hook's button and hangs up (puts the phone "on hook"). See off-hook and flash button.
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References in periodicals archive ?
In realistic situations, background noise is often present, which the far-end party would hear after the subscribers pressed the button but before they flashed the switch hook to talk to the new caller.
In the user-controlled condition, subscribers had to take two different actions: They pressed a button to find out who was calling, and they flashed the switch hook to talk to the new caller.
In Call Waiting service and in automatic CIDCW, the one action subscribers can take (flashing the switch hook) switches them between the far-end party and the new caller.