exchange line call
1Line signaling — is a class of telecommunications signaling protocols. Line signaling is responsible for off hook, ringing signal, answer, ground start, on hook unidirectional supervision messaging in each direction from calling party to called party and vice… …
2Exchange-traded fund — An exchange traded fund (ETF) is an investment fund traded on stock exchanges, much like stocks.[1] An ETF holds assets such as stocks, commodities, or bonds, and trades close to its net asset value over the course of the trading day. Most ETFs… …
3Call of Duty: Black Ops — Box art Developer(s) …
4Line of credit — Finance Financial markets Bond market …
5Line of Delirium — infobox Book | name = Line of Delirium title orig = Linia Grez, Линия Грез (Russian) image caption = author = Sergei Lukyanenko (Сергей Лукьяненко) country = Russia language = Russian series = Line of Delirium trilogy genre = Space Opera, Science …
6Evergreen Line (Vancouver) —      Evergreen Line Overview Type Light Metro Rapid Transit System …
7Foreign exchange service (telecommunications) — In telecommunication, a foreign exchange service (FX) is a network provided service in which a telephone in a given local area is connected, via a private line, to a central office in another, i.e., foreign , exchange, rather than the local… …
8Telephone 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… …
9Highgate Wood Telephone Exchange — Highgate Wood is a suburb in North London that was chosen as the site of a trial for an electronic telephone exchange built by members from Joint Electronic Research Council (JERC), which was formed in 1956 and consisted of the British Post… …
10Private branch exchange — A private branch exchange (PBX) is a telephone exchange that serves a particular business or office, as opposed to one that a common carrier or telephone company operates for many businesses or for the general public. PBXs are also referred to as …
