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key-telephone system

См. также в других словарях:

  • 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

  • key telephone system —    A system that provides direct selection of an outside line from a multiline telephone set; such functions as line holding and intercommunications are selected at the instrument. Visual indications are given on the status of each line… …   IT glossary of terms, acronyms and abbreviations

  • 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 system — can refer to the following:*Key telephone system communication *Key System Defunct transportation system in the San Francisco Bay Area *KeY System a software verification tool. *Cryptosystem using a Cryptographic key …   Wikipedia

  • Telephone plug — A telephone plug is a plug which allows a telephone to connect to the local telephone network. It plugs into a socket or jack fixed to the wall or baseboard. The standard for telephone plugs varies from country to country though the RJ11 has… …   Wikipedia

  • key service unit —    (KSU)    The main operating unit of a key telephone system …   IT glossary of terms, acronyms and abbreviations

  • 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 — The telephone (from the el. τῆλε, tēle , far and φωνή, phōnē , voice ) is a telecommunications device that is used to transmit and receive sound (most commonly speech), usually two people conversing but occasionally three or more. It is one of… …   Wikipedia

  • 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

  • 1A2 Key System — The 1A2 Key System is an analog multiline business key telephone system. Unlike more modern multiline systems, every telephone line serving a particular phone is wired into that phone, and electromechanical switches (the keys ) switch the lines… …   Wikipedia

  • Multi-Line Extension telephone — This article refers to a specific series of historic telephones. For multi line phone systems in general, see private branch exchange or key telephone system. A Multi Line Extension, or MLX telephone, is a no longer manufactured series of digital …   Wikipedia

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