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70 relations: Alameda, California, Area code 216, Area code 312, Area code 313, Area code 318, Area code 401, Area code 412, Area code 414, Area codes 215, 267, and 445, Area codes 415 and 628, Area codes 617 and 857, Area codes 916 and 279, Automatic message accounting, Automatic number identification, Boston, Calling party, Chicago, Circuit switching, Cleveland, Common control, Commonwealth of Nations, Compelled signalling, Competitive local exchange carrier, Detroit, East Bay (San Francisco Bay Area), Electronic switching system, Englewood, New Jersey, Four-wire circuit, Frank Osborne (California politician), Golden Gate, International direct dialing, Local number portability, Long-distance calling, M. Leslie Denning, Marker (telecommunications), Milwaukee, Montreal, Multi-frequency signaling, New Jersey, North American Numbering Plan, Number Five Crossbar Switching System, Number One Crossbar Switching System, Number pooling, Oakland, California, Off-hook, Operator assistance, Panel switch, Party line (telephony), Philadelphia, Pittsburgh, ..., Providence, Rhode Island, Punched card, Sacramento, California, San Francisco, San Francisco Bay Area, Signaling System No. 5, Strowger switch, Subscriber loop carrier, Subscriber trunk dialling, Teaneck, New Jersey, Telecommunication, Telephone exchange, Telephone exchange names, Telephone numbering plan, The New York Times, Toronto, Traffic Service Position System, User (telecommunications), Whitehorse, Yukon, 32 Avenue of the Americas. Expand index (20 more) »
Alameda, California
Alameda (Spanish) is a city in Alameda County, California, United States.
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Area code 216
Area code 216 is the North American telephone area code for Cleveland, Ohio, and most of its inner-ring suburbs in Cuyahoga County.
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Area code 312
Area code 312 is the telephone area code for downtown Chicago, which includes the Chicago Loop and its immediate environs.
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Area code 313
Area code 313 is an area code within the North American Numbering Plan serving Detroit and most of its closest suburbs in Wayne County, Michigan.
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Area code 318
Area code 318 is a telephone area code that covers northern and central Louisiana.
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Area code 401
Area code 401 is the sole telephone area code of Rhode Island.
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Area code 412
Area code 412 is a Commonwealth of Pennsylvania telephone area code which serves Pittsburgh, most of surrounding Allegheny County (except the northern edge of Allegheny County served by Consolidated Communications, formerly the North Pittsburgh Telephone Company) and small portions of Washington and Westmoreland counties.
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Area code 414
North American telephone area code 414 is a state of Wisconsin area code which was created along with area code 715 as one of the two original area codes assigned to Wisconsin in October 1947.
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Area codes 215, 267, and 445
Area codes 215, 267, and 445 are the North American telephone area codes for the City of Philadelphia, as well as its suburbs in Bucks and Montgomery Counties in the Commonwealth of Pennsylvania.
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Area codes 415 and 628
Area codes 415 and 628 are California telephone area codes for San Francisco and its northern suburbs in Marin County (across the Golden Gate Bridge), and the northeast corner of San Mateo County.
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Area codes 617 and 857
Area codes 617 and 857 are the North American area codes serving Boston and several surrounding communities in Massachusetts—such as Brookline, Cambridge, Newton and Quincy (LATA code 128).
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Area codes 916 and 279
Area code 916 is a California telephone area code that was one of the first three original area codes established in California in October 1947.
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Automatic message accounting
Automatic message accounting (AMA) provides detailed accounting for telephone calls.
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Automatic number identification
Automatic number identification (ANI) is a feature of a telecommunications network for automatically determining the origination telephone number on toll calls for billing purposes.
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Boston
Boston is the capital city and most populous municipality of the Commonwealth of Massachusetts in the United States.
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Calling party
The calling party (in some contexts called the "A-Number") is a person who (or device that) initiates a telephone call.
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Chicago
Chicago, officially the City of Chicago, is the third most populous city in the United States, after New York City and Los Angeles.
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Circuit switching
Circuit switching is a method of implementing a telecommunications network in which two network nodes establish a dedicated communications channel (circuit) through the network before the nodes may communicate.
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Cleveland
Cleveland is a city in the U.S. state of Ohio, and the county seat of Cuyahoga County.
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Common control
In telecommunication, a common control is an automatic telephone exchange arrangement in which the control equipment necessary for the establishment of connections is shared by being associated with a given call only during the period required to accomplish the control function for the given call.
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Commonwealth of Nations
The Commonwealth of Nations, often known as simply the Commonwealth, is an intergovernmental organisation of 53 member states that are mostly former territories of the British Empire.
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Compelled signalling
The term compelled signalling refers to a class of telecommunications signalling protocols where receipt of each discrete signal needs to be explicitly acknowledged before the next signal is able to be sent.
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Competitive local exchange carrier
A competitive local exchange carrier (CLEC), in the United States and Canada, is a telecommunications provider company (sometimes called a "carrier") competing with other, already established carriers (generally the incumbent local exchange carrier (ILEC)).
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Detroit
Detroit is the most populous city in the U.S. state of Michigan, the largest city on the United States–Canada border, and the seat of Wayne County.
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East Bay (San Francisco Bay Area)
The eastern region of the San Francisco Bay Area, commonly referred to as the East Bay, includes cities along the eastern shores of the San Francisco Bay and San Pablo Bay.
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Electronic switching system
In telecommunications, an electronic switching system (ESS) is a telephone switch that uses digital electronics and computerized control to interconnect telephone circuits for the purpose of establishing telephone calls.
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Englewood, New Jersey
Englewood is a city located in Bergen County, New Jersey, United States.
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Four-wire circuit
In telecommunication, a four-wire circuit is a two-way circuit using two paths so arranged that the respective signals are transmitted in one direction only by one path and in the other direction by the other path.
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Frank Osborne (California politician)
Frank Osborne was the mayor of Alameda, California.
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Golden Gate
The Golden Gate is a strait on the west coast of North America that connects San Francisco Bay to the Pacific Ocean.
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International direct dialing
International direct dialing (IDD) or international subscriber dialling (ISD) is placing an international telephone call that is dialed directly by a telephone subscriber, rather than by an telephone operator.
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Local number portability
Local number portability (LNP) for fixed lines, and full mobile number portability (FMNP) for mobile phone lines, refers to the ability of a "customer of record" of an existing fixed-line or mobile telephone number assigned by a local exchange carrier (LEC) to reassign the number to another carrier ("Service Provider Portability"), move it to another location ("Geographic Portability"), or change the type of service ("Service Portability").
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Long-distance calling
In telecommunications, a long-distance call or trunk call is a telephone call made to a location outside a defined local calling area.
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M. Leslie Denning
Melvin Leslie Denning (1895–1986) was the Mayor of Englewood, New Jersey.
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Marker (telecommunications)
A marker is a type of special purpose control system that was used in electromechanical telephone central office switches.
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Milwaukee
Milwaukee is the largest city in the state of Wisconsin and the fifth-largest city in the Midwestern United States.
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Montreal
Montreal (officially Montréal) is the most populous municipality in the Canadian province of Quebec and the second-most populous municipality in Canada.
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Multi-frequency signaling
In telephony, multi-frequency signaling (MF) is a signaling system that was introduced by the Bell System after World War II.
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New Jersey
New Jersey is a state in the Mid-Atlantic region of the Northeastern United States.
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North American Numbering Plan
The North American Numbering Plan (NANP) is a telephone numbering plan that encompasses 25 distinct regions in twenty countries primarily in North America, including the Caribbean and the U.S. territories.
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Number Five Crossbar Switching System
The Number Five Crossbar Switching System (5XB switch) is a telephone switch for telephone exchanges designed by Bell Labs and manufactured by Western Electric starting in 1947.
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Number One Crossbar Switching System
The Number One Crossbar Switching System (1XB switch), was the primary technology for designing urban telephone exchanges in the Bell System in the mid-20th century.
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Number pooling
Number pooling is a method of reallocating telephony numbering space in the North American Numbering Plan, primarily in growth areas in the United States.
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Oakland, California
Oakland is the largest city and the county seat of Alameda County, California, United States.
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Off-hook
In telephony, the term off-hook has the following meanings.
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Operator assistance
Operator assistance refers to a telephone call in which the calling party requires an operator to provide some form of assistance in completing the call.
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Panel switch
The Panel Machine Switching System is an early type of automatic telephone exchange for urban service, introduced in the Bell System in the 1920s.
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Party line (telephony)
A party line (multiparty line, shared service line, party wire) is a local loop telephone circuit that is shared by multiple telephone service subscribers.
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Philadelphia
Philadelphia is the largest city in the U.S. state and Commonwealth of Pennsylvania, and the sixth-most populous U.S. city, with a 2017 census-estimated population of 1,580,863.
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Pittsburgh
Pittsburgh is a city in the Commonwealth of Pennsylvania in the United States, and is the county seat of Allegheny County.
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Providence, Rhode Island
Providence is the capital and most populous city of the U.S. state of Rhode Island and is one of the oldest cities in the United States.
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Punched card
A punched card or punch card is a piece of stiff paper that can be used to contain digital data represented by the presence or absence of holes in predefined positions.
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Sacramento, California
Sacramento is the capital city of the U.S. state of California and the seat of Sacramento County.
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San Francisco
San Francisco (initials SF;, Spanish for 'Saint Francis'), officially the City and County of San Francisco, is the cultural, commercial, and financial center of Northern California.
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San Francisco Bay Area
The San Francisco Bay Area (popularly referred to as the Bay Area) is a populous region surrounding the San Francisco, San Pablo and Suisun estuaries in the northern part of the U.S. state of California.
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Signaling System No. 5
The Signaling System No.
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Strowger switch
The Strowger switch is the first commercially successful electromechanical stepping switch telephone exchange system.
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Subscriber loop carrier
A subscriber loop carrier or subscriber line carrier (SLC) provides telephone exchange-like telephone interface functionality.
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Subscriber trunk dialling
Subscriber trunk dialling (STD, also known as subscriber toll dialling) is a telephone system allowing subscribers to dial trunk calls without operator assistance.
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Teaneck, New Jersey
Teaneck is a township in Bergen County, New Jersey, United States, and a suburb in the New York metropolitan area.
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Telecommunication
Telecommunication is the transmission of signs, signals, messages, words, writings, images and sounds or information of any nature by wire, radio, optical or other electromagnetic systems.
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Telephone exchange
A telephone exchange is a telecommunications system used in the public switched telephone network or in large enterprises.
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Telephone exchange names
A telephone exchange name or central office name was a distinguishing and memorable name assigned to a central office.
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Telephone numbering plan
A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints.
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The New York Times
The New York Times (sometimes abbreviated as The NYT or The Times) is an American newspaper based in New York City with worldwide influence and readership.
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Toronto
Toronto is the capital city of the province of Ontario and the largest city in Canada by population, with 2,731,571 residents in 2016.
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Traffic Service Position System
The Traffic Service Position System (TSPS) was developed by Bell Labs in Columbus, Ohio to replace traditional cord switchboards.
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User (telecommunications)
In telecommunications, a user is a person, organization, or other entity that employs the services provided by a telecommunication system, or by an information processing system, for transfer of information.
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Whitehorse, Yukon
Whitehorse is the capital and only city of Yukon, and the largest city in northern Canada.
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32 Avenue of the Americas
32 Avenue of the Americas, also known as the AT&T Long Distance Building, or simply the AT&T Building, is a 27-story landmarked Art Deco skyscraper located in the Tribeca neighborhood of New York City.
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Redirects here:
Direct Distance Dialing, Direct distance dial, Direct distance dialling, Direct-dial, IDDD.
References
[1] https://en.wikipedia.org/wiki/Direct_distance_dialing
