Central office can mean any of the following:
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Plain old telephone service (POTS), or plain ordinary telephone service, is a retronym for voice-grade telephone service employing analog signal transmission over copper loops. POTS was the standard service offering from telephone companies from 1876 until 1988 in the United States when the Integrated Services Digital Network (ISDN) Basic Rate Interface (BRI) was introduced, followed by cellular telephone systems, and voice over IP (VoIP). POTS remains the basic form of residential and small business service connection to the telephone network in many parts of the world. The term reflects the technology that has been available since the introduction of the public telephone system in the late 19th century, in a form mostly unchanged despite the introduction of Touch-Tone dialing, electronic telephone exchanges and fiber-optic communication into the public switched telephone network (PSTN).
The North American Numbering Plan (NANP) is a telephone numbering plan that encompasses twenty-five distinct regions in twenty countries primarily in North America, including the Caribbean. Some North American countries, most notably Mexico, do not participate in the NANP.
Smith Square is a square in the Westminster district of London, just south of the Palace of Westminster. The centre of the square is occupied by St John's, Smith Square, a Baroque church now used as a concert hall. Most of the square is now taken up by offices and the location means that they are mostly occupied by organisations associated with the government, or that need to be near it for lobbying purposes. In the mid 20th century the square hosted the headquarters of both the main parties of British politics, and it is now home to the Department for Environment, Food and Rural Affairs, the Local Government Association and the London base of the European Parliament and European Commission.
The Chairman of the Conservative Party in the United Kingdom is responsible for party administration, overseeing the Conservative Campaign Headquarters, formerly Conservative Central Office.
The New York Telephone Company (NYTel) was organized in 1896, taking over the New York City operations of the American Bell Telephone Company.
Northwestern Bell Telephone Company served the states of the upper Midwest opposite the Southwestern Bell area, including Iowa, Minnesota, South Dakota, North Dakota, and Nebraska.
Verizon New Jersey, Inc., formerly New Jersey Bell Telephone Company, is the Bell Operating Company serving the U.S. state of New Jersey. In 1984, the Bell System Divestiture split New Jersey Bell off into a Regional Bell Operating Company, along with the 21 other BOCs AT&T had a majority stake in. On January 1, 1984, New Jersey Bell became part of Bell Atlantic.
Indiana Bell Telephone Company, Incorporated, is the Bell Operating Company serving Indiana. It is an indirect subsidiary of AT&T Inc., owned by AT&T Teleholdings.
Post Office Telecommunications was set up as a separate department of the UK Post Office, in October 1969. The Post Office Act of that year was passed to provide for greater efficiency in post and telephone services; rather than run a range of services, each organisation would be able to focus on their respective service, with dedicated management. By law, the Post Office had the exclusive right to operate the UK national telecom network, and limited ability to license other providers' services and equipment.
17 & 19 Newhall Street is a red brick and architectural terracotta Grade I listed building, situated on the corner of Newhall Street and Edmund Street in the city centre of Birmingham, England. Although its official name is 17 & 19 Newhall Street, it is popularly known as The Exchange, and was previously known as the Bell Edison Telephone Building.
Monmouthshire County Council is the governing body for the Monmouthshire principal area – one of the unitary authorities of Wales.
Whitacre Tower, also known as One AT&T Plaza, and formerly known as One Bell Plaza, is a 37-story high-rise in Downtown Dallas, built adjacent to the Akard Street Mall in 1984.
The Conservative Party Archive (CPA) is the official place of deposit for the historic records of the Conservative Party of the United Kingdom. Based at the Bodleian Library in Oxford, England, it was established as a centre for people.
The Detroit–Columbia Central Office Building is a building located at 52 Selden Street in Midtown Detroit, Michigan. It is also known as the Michigan Bell Telephone Exchange. The building was listed on the National Register of Historic Places in 1997.
The AT&T Building is a high rise located at 240 North Meridian Street in Indianapolis, Indiana. It was opened in 1932 and is 22 stories tall. It is primarily used for office space and is the headquarters for AT&T in Indiana. The AT&T Building is connected with the AT&T 220 Building, which is located just to the south. The building has been expanded and has achieved its present form only after a few iterations.
A telephone number is a sequence of digits assigned to a fixed-line telephone subscriber station connected to a telephone line or to a wireless electronic telephony device, such as a radio telephone or a mobile telephone, or to other devices for data transmission via the public switched telephone network (PSTN) or other public and private networks.
The General Post Office (GPO) was officially established in England in 1660 by Charles II and it eventually grew to combine the functions of state postal system and telecommunications carrier. Similar General Post Offices were established across the British Empire. In 1969 the GPO was abolished and the assets transferred to The Post Office, changing it from a Department of State to a statutory corporation. In 1980, the telecommunications and postal sides were split prior to British Telecommunications' conversion into a totally separate publicly owned corporation the following year as a result of the British Telecommunications Act 1981. For the more recent history of the postal system in the United Kingdom, see the articles Royal Mail and Post Office Ltd.
A telephone exchange or telephone switch is a telecommunications system used in the public switched telephone network or in large enterprises. It interconnects telephone subscriber lines or virtual circuits of digital systems to establish telephone calls between subscribers.
The Conservative Campaign Headquarters (CCHQ), formerly known as Conservative Central Office (CCO), is the headquarters of the British Conservative Party, housing its central staff and committee members, including campaign coordinators and managers. As of July 2019, James Cleverly and Ben Elliot serve as Chairman of the Conservative Party.
Tata Centre is a high-rise located in Kolkata, India. It is located in the central business district of the city beside Jawaharlal Nehru Road.