business telephone system is a telephone system typically used in business environments, encompassing the range of technology from the key telephone system...

Plain Old Telephone Service (POTS), or Plain Ordinary Telephone System, is a retronym for voice-grade telephone service that employs analog signal transmission...

Telephone System is a business telephone system developed and distributed by the Western Electric Company for the Bell System. The 1A2 Key Telephone System...

ExecuTech System 2000 Make an intercom call. At the busy signal, dial "*6". Hang up. When the desired extension becomes idle, the calling telephone receives...

ISDN, and other telephone systems. TAPI is used primarily to control either modems or, more recently, to control business telephone system (PBX) handsets...

memorized. A telephone number serves as an address for switching telephone calls using a system of destination code routing. Telephone numbers are entered...

and became rapidly indispensable in business, government, and in households. The essential elements of a telephone are a microphone (transmitter) to speak...

A telephone exchange, telephone switch, or central office is a central component of a telecommunications system in the public switched telephone network...

The Bell System was a system of telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company...

A telephone keypad is a keypad installed on a push-button telephone or similar telecommunication device for dialing a telephone number. It was standardized...

GTE Corporation, formerly General Telephone & Electronics Corporation (1955–1982), was the largest independent telephone company in the United States during...

An inmate telephone system, also known as an Inmate Calling Service (ICS) or Inmate telephone service, is telephone service intended for use by inmates...

specialized in premises-based private branch exchanges, i.e., business telephone systems. Vertical Communications changed its name on January 1, 2005 from...

Activation of features of a business telephone system from outside the business's premises RemoteAccess, a DOS-based bulletin-board system Remote Database Access...

Telephone and Data Systems, Inc. is a Chicago-based telecommunications service company providing wireless products and services; cable and wireline broadband...

(McFarland, 2010). Lipartito, Kenneth. The Bell System and Regional Business: The Telephone Business in the South, 1877–1920 (The Johns Hopkins University...

be taken at the present time. Business telephone system Call-recording hardware Voicemail Portals: Electronics Telephones Technology Telecommunication...

with operations support systems (OSS), they are used to support various end-to-end telecommunication services (e.g., telephone services). BSS and OSS have...

The director telephone system was a development of the Strowger or step-by-step (SXS) switching system used in London and five other large cities in the...

A telephone directory, commonly called a telephone book, telephone address book, phonebook, or the white and yellow pages, is a listing of telephone subscribers...

A telephone line or telephone circuit (or just line or circuit industrywide) is a single-user circuit on a telephone communication system. It is designed...

Telephone call recording laws are legislation enacted in many jurisdictions, such as countries, states, provinces, that regulate the practice of telephone...

1750, 2750 and 3750 Switching Systems (world-wide the first electronic computer-controlled business telephone systems widely called PABXs — Private Automatic...

gateways, which allow telephone users to communicate with each other. Originally a network of fixed-line analog telephone systems, the PSTN is now predominantly...

relinquish control of the Bell Operating Companies, which had provided local telephone service in the United States. AT&T would continue to be a provider of...

telephone number of that person or business, a reverse telephone directory allows users to search by a telephone service number in order to retrieve...

known as the National Telephone Numbering Plan, which is the system for assigning telephone numbers to subscriber stations. Telephone numbers are of variable...

all users. Some telephones intended for use as extensions have built-in intercom features; a key telephone system for a small business may offer two to...

telephony is a feature of private branch exchanges and other business telephone systems, whereby for a set period during the day (usually those hours...

security service at night for banks and businesses, as well as a telephone system. The switchboard operated telephone instruments manufactured by Charles...