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switch hook

   Also found in: Acronyms 0.02 sec.
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.
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.


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A better and quieter solution is to click the release or switch hook button first and then put the handset down into place.
The phones have a precisely timed one-touch key that doesn't cut off callers, as the 1A2 switch hook sometimes did.
 
 
 
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