Electronic telephone switching systems

См. также в других словарях:

• telephone — telephoner, n. /tel euh fohn /, n., v., telephoned, telephoning. n. 1. an apparatus, system, or process for transmission of sound or speech to a distant point, esp. by an electric device. v.t. 2. to speak to or summon (a person) by telephone. 3.… …   Universalium

• 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

• Switching Control Center System — The Switching Control Center System was an Operations Support System developed by Bell Laboratories and deployed during the early 1970s. This computer system was first based on the PDP 11 product line from Digital Equipment Corporation and used… …   Wikipedia

• Electronic voting — Election technology Certification of voting machines Independent Testing Authority (ITA) NVLAP VVSG End to end auditable voting systems Help America Vote Act Independent verific …   Wikipedia

• Telephone numbering plan — Area Code redirects here. For the song by Ludacris, see Area Codes (song). A telephone numbering plan is a type of numbering scheme used in telecommunications to allocate telephone numbers to subscribers and to route telephone calls in a… …   Wikipedia

• Business telephone system — Early model 464G Western Electric key telephone set A business telephone system is any of a range of a multiline telephone systems typically used in business environments, encompassing systems ranging from small key systems to large scale private …   Wikipedia

• Key telephone system — A key system or key telephone system is a multiline telephone system typically used in small office environments.Key systems are noted for their expandability and having individual line selection buttons for each connected phone line, however… …   Wikipedia

• Electronic voice phenomenon — Electronic voice phenomena (EVP) are sections of static noise on the radio or electronic recording that some listeners believe sound like voices speaking words; paranormal investigators sometimes interpret these noises as the voices of ghosts or… …   Wikipedia

• Electronic amplifier — A practical amplifier circuit An electronic amplifier is a device for increasing the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. In… …   Wikipedia

• electronic music — electronically produced sounds recorded on tape and arranged by the composer to form a musical composition. [1930 35] * * * Any music involving electronic processing (e.g., recording and editing on tape) and whose reproduction involves the use of …   Universalium

• Telephone tapping — Wiretap redirects here. For the radio program, see WireTap (radio program). Telephone tapping (also wire tapping or wiretapping in American English) is the monitoring of telephone and Internet conversations by a third party, often by covert means …   Wikipedia