PBXS

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• 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

• Private 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 …   Wikipedia

• Digital Private Network Signalling System — The Digital Private Network Signalling System (DPNSS) is a network protocol used on digital trunk lines for connecting two PABX. It supports a defined set of inter networking facilities. DPNSS was originally defined by British Telecom. The… …   Wikipedia

• Voicemail — (also known as voice mail, voice message, or voice bank) is a computer based system that allows users and subscribers to exchange personal voice messages; to select and deliver voice information; and to process transactions relating to… …   Wikipedia

• Telephone 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) …   Wikipedia

• Integrated Services Digital Network — ISDN redirects here. For other uses, see ISDN (disambiguation). Integrated Services Digital Network (ISDN) is a set of communications standards for simultaneous digital transmission of voice, video, data, and other network services over the… …   Wikipedia

• QSIG — is an ISDN based signaling protocol for signaling between private branch exchanges (PBXs) in a Private Integrated Services Network (PISN). It makes use of the connection level Q.931 protocol and the application level ROSE protocol. ISDN proper… …   Wikipedia

• Objectworld Communications — Corp. Type Private Industry Telecommunications Computer software Founded Ontario, Canada (1994, as ObjectWorld, Inc.) [1] Headquart …   Wikipedia

• Polymer-bonded explosive — A polymer bonded explosive, also called PBX or plastic bonded explosive, is an explosive material in which explosive powder is bound together in a matrix using small quantities (typically 5–10% by weight) of a synthetic polymer ( plastic ). Note… …   Wikipedia

• Digium — Type Private Industry Telecommunications Founded 1999 Founder(s) …   Wikipedia

• Vertical Communications — Infobox Company company name = Vertical Communications, Inc. company company type = Public (nasdaq|VRCC) foundation = 1982 location = Cambridge, Massachusetts, USA key people = [http://www.vertical.com/about corporate execteam.html Bill Tauscher …   Wikipedia