A telephone hook or switchhook is an electrical switch which indicates when the phone is hung up, often with a lever or magnetic button inside the cradle...

In telephony, on-hook and off-hook are two states of a communication circuit. On subscriber telephones the states are produced by placing the handset...

receiver off the switch hook, activating an internal switch connecting the telephone to the telephone line. Candlestick telephones required the nearby installation...

connected directly to the calling party, when the caller takes their telephone off-hook, the calling party's phone will ring. This is called a [hot line]...

A telephone exchange, telephone switch, or central office is a central component of a telecommunications system in the public switched telephone network...

off-hook tone (also off-hook warning, howling tone, or howler tone) is a telephony signal for alerting a user that the telephone has been left off-hook without...

ringer signal through while still blocking DC (keeping the phone "on hook"). Telephones connected to the earliest Strowger switch automatic exchanges had...

telephone would now draw all the power needed from the central office. The telephone hook replaced the hand generator as the primary method for signaling the...

indicator light on the cord circuit. When the subscriber cycled the telephone on-hook/off-hook, the light would flash. Actors in old movies often demonstrate...

The Western Electric model 500 telephone series was the standard domestic desk telephone set issued by the Bell System in North America from 1950 through...

Look up hook in Wiktionary, the free dictionary. A hook is a tool with a curved end. Hook may also refer to: Hook#Variations for similar tools Hook hand...

A telephone switchboard is a device used to connect circuits of telephones to establish telephone calls between users or other switchboards. The switchboard...

ending a telephone call. Usually a button with green upright (off-hook) handset icon is used for starting a call, and a red lying-down (on-hook) handset...

of the telephone chronicles the development of the electrical telephone, and includes a brief overview of its predecessors. The first telephone patent...

cordless telephone or portable telephone has a portable telephone handset that connects by radio to a base station connected to the public telephone network...

known as telephone messaging machine (or TAM) in the UK and some Commonwealth countries, ansaphone or ansafone (from a trade name), or telephone answering...

of British telephones used to be specified in BS 6305. They are similar to modular connectors (as used in RJ11), but have a side-mounted hook, rather than...

signal sent by a telephone exchange or private branch exchange (PBX) to a terminating device, such as a telephone, when an off-hook condition is detected...

Glen made his final performance at the National Quartet Convention via telephone hook-up from his hospital bed at Vanderbilt Hospital. During this Cathedral's...

without any additional action by the user when the end instrument goes off-hook. An example would be a phone that automatically connects to emergency services...

the subscriber. An automatic switch-hook was designed by Hilborne Roosevelt. The first commercial automatic telephone exchange, designed by Almon Brown...

ability to recognize the song's hook. Often radio stations conduct "call out" either on the Internet, via telephone, or a music test (either online or...

Plain old telephone service (POTS), or publicly offered telephone service, is basic voice-grade telephone service. Historically, POTS has been delivered...

of the entire telephone line (local loop) is reduced when the telephone handset is lifted off the hook. This signals that the telephone call has been...

featured a switch-hook for hanging the handset. Other American and foreign telephone manufacturers had already produced this type of telephone, often referred...

EE-8 field telephone TA-312 field telephone TA-312 with handset off hook Telephone Set TA-312 Manual Field telephone switchboard on display at the Fort...

is a telephone service, available in analog and digital telephone systems, including voice over IP (VoIP), that transmits a caller's telephone number...

the replacement product recommended by Avaya. Business telephone system Portico TVA Telephone hook Nortel: Technology: History of Innovation Archived 2008-07-20...

"Touch-Tone Telephone" is a song by Lemon Demon, a musical project created by American musician Neil Cicierega. It was released on February 29, 2016,...

that the singer was the one to pay the production costs (including the telephone hook-up to New York) and was fired for messing up the No. 1 song, "Don't...