switch hook


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.

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.