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Private line automatic ringdown

См. также в других словарях:

  • Ringdown — Ringdown: In telephony, a method of signaling an operator in which telephone ringing current is sent over the line to operate a lamp or cause the operation of a self locking relay known as a drop . Ringdown (a) is used in manual operation, as… …   Wikipedia

  • PLAR — Prior Learning Assessment And Recognition (Community » Educational) * Private Line Automatic Ringdown (Computing » Telecom) * Private Line Auto Ringdown (Computing » Telecom) * Prior Learning And Recognition (Academic & Science » Universities) …   Abbreviations dictionary

  • PLAR — may mean: * Private line automatic ringdown, a telephony term * Prior learning assessment and recognition, an educational term used mainly in Canada …   Wikipedia

  • DID — DID (Direct Inward Dialing)  возможность УАТС использовать несколько городских номеров для маршрутизации входящих вызовов из телефонной сети общего пользования (ТФОП). Разработанная в 1960 х годах компанией AT T и основанная на более… …   Википедия

  • Courtesy telephone — A white courtesy telephone A courtesy telephone is a telephone located in airport terminals, large train stations, hotel lobbies, and other places where many travellers are expected, which is used to relay messages to a specific person. It is… …   Wikipedia

  • Glossary of firefighting equipment — Note: This list is incomplete. You can help Wikipedia by [http://en.wikipedia.org/w/index.php?title=Glossary of firefighting equipment action=edit adding to it] . 0 9 * 1 3/4 inch hose: see attack hose * 2 1/2 inch hose: see attack hose , supply… …   Wikipedia

  • Rotary dial — A German Fe TAp 615, (R g) a widespread rotary dial telephone of the 1960s to the 1980s The rotary dial is a device mounted on or in a telephone or switchboard that is designed to send electrical pulses, known as pulse dialing, corresponding to… …   Wikipedia

  • Telephone call — A telephone call is a connection over a telephone network between the calling party and the called party. Information transmissionA telephone call may carry ordinary voice transmission using a telephone, data transmission when the calling party… …   Wikipedia

  • Telephone exchange — A telephone operator manually connecting calls with cord pairs at a telephone switchboard. In the field of telecommunications, a telephone exchange or telephone switch is a system of electronic components that connects telephone calls. A central… …   Wikipedia

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