long-distance telephone system
1Philippine Long Distance Telephone Company — Infobox Company company name = Philippine Long Distance Telephone Company company company type = Public company slogan = The power of convergence foundation = Manila, Philippines (1928) location = Makati City, Philippines key people = Manuel V.… …
2First long-distance telephone line — Infobox local1 name =World s First Long Distance Telephone Line chisl = yes caption = location= Pleasant Valley Road French Corral, California lat degrees = lat minutes = lat seconds = lat direction = long degrees = long minutes = long seconds =… …
3Business 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 …
4Key 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… …
5telephone — 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.… …
6Telephone 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… …
7Telephone — 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… …
8direct distance dialing — Abbreviated DDD. Use of the normal long distance telephone system without the need for the intervention of an operator …
9Telephone 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… …
10Telephone switchboard — PBX switchboard, 1975 A switchboard (also called a manual exchange) was a device used to connect a group of telephones manually to one another or to an outside connection, within and between telephone exchanges or private branch exchanges (PBXs) …
