Private Branch Exchanges

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• Private currency — Not to be confused with alternative currency or complementary currency . A private currency is a currency issued by a private organization. It is often contrasted with fiat currency issued by governments or central banks. In many countries,… …   Wikipedia

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• 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

• 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

• H.323 — is an umbrella Recommendation from the ITU Telecommunication Standardization Sector (ITU T) that defines the protocols to provide audio visual communication sessions on any packet network.It is widely implemented by voice and videoconferencing… …   Wikipedia

• Nixdorf Computer — Logo Heinz Nixdorf Nixdorf Computer AG was a computer comp …   Wikipedia

• Telesciences — Infobox Company company name = TeleSciences company type = Private company slogan = Profit from your data | foundation = Mount Laurel (1967) | location = Mount Laurel, NJ | key people = Mark Trudeau, CEO, President Curtis Begley, VP Global Sales… …   Wikipedia

• tie-line — noun Date: 1923 a telephone line that directly connects two or more private branch exchanges …   New Collegiate Dictionary

• Customer-premises equipment — or customer provided equipment (CPE) is any terminal and associated equipment located at a subscriber s premises and connected with a carrier s telecommunication channel(s) at the demarcation point ( demarc ). The demarc is a point established in …   Wikipedia

• Night service — In general, a night service is any service that operates at night, such as a night time public transport service or a 24 hour telephone support service. Night service in particular is also a feature of private branch exchanges and business… …   Wikipedia