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Telecommunication system for establishing telephone calls
A telephone exchange, telephone switch, or central office is a central component of a telecommunications system in the public switched telephone network
Telephone_exchange
Alphanumeric telephone numbering plan
A telephone exchange name or central office name was a distinguishing and memorable name assigned to a central office. It identified the switching system
Telephone_exchange_names
Audio communication over a telephone
between telephone installations, until centralized exchanges evolved where telephone operators established each interconnection manually at a telephone switchboard
Telephone_call
Telecommunications device
Hungarian engineer Tivadar Puskás proposed the telephone switch, which allowed for the formation of telephone exchanges, and eventually networks. In the United
Telephone
of the telephone chronicles the development of the electrical telephone, and includes a brief overview of its predecessors. The first telephone patent
History_of_the_telephone
This is a list of telephone exchanges located within Greater London. Occasionally, in areas of high demand, two exchanges are located at the same premises;
List of telephone exchanges in London
List_of_telephone_exchanges_in_London
Device for sending telephone numbers
dialing. It is used when initiating a telephone call to transmit the destination telephone number to a telephone exchange as a succession of individual digits
Rotary_dial
Telephone exchange in Birmingham, England
Anchor Exchange is an underground telephone switching system and former hardened telephone exchange built in Birmingham, England. Construction commenced
Anchor_telephone_exchange
Device used to connect telephone circuits to establish calls between users
switchboards. The switchboard is an essential component of a manual telephone exchange, and is operated by switchboard operators who use electrical cords
Telephone_switchboard
Sequence of digits assigned to a telephone subscription
(PSTN). A telephone number typically consists of a sequence of digits, but historically letters were also used in connection with telephone exchange names
Telephone_number
Former historic site in New Haven, Connecticut
First Telephone Exchange was a historic site located in New Haven, Connecticut, notable for being the site of the world's first commercial telephone exchange
First_Telephone_Exchange
Underground, hardened telephone exchange in Manchester
Guardian Exchange was an underground telephone exchange built in Manchester from 1954 to 1957. It was built together with the Anchor exchange in Birmingham
Guardian_telephone_exchange
Telephone system typically used in business environments
(KTS) to the private branch exchange (PBX). A business telephone system differs from an installation of several telephones with multiple central office
Business_telephone_system
Aggregate of all public telephone networks
telephone systems took advantage of the exchange principle already employed in telegraph networks. Each telephone was wired to a telephone exchange established
Public switched telephone network
Public_switched_telephone_network
Telephone which has buttons or keys for dialing
push-button telephone is a telephone that has buttons or keys for dialing a telephone number, in contrast to a rotary dial used in earlier telephones. Western
Push-button_telephone
Central Telephone Exchange - 14 July 1980 Changi Telephone Exchange Geylang Telephone Exchange Hougang Telephone Exchange Jurong Telephone Exchange Jurong
Telephone numbers in Singapore
Telephone_numbers_in_Singapore
American inventor of the telephone exchange (1839–1902)
American inventor for whom the Strowger switch, an electromechanical telephone exchange technology, is named. Strowger was born in Penfield, New York, near
Almon_Brown_Strowger
Cold War telephone exchange under London
Kingsway telephone exchange was a Cold War-era hardened telephone exchange underneath Chancery Lane tube station in High Holborn in London. Initially
Kingsway_telephone_exchange
Field of telecommunication services
telephone exchange provided the solution for establishing telephone connections with any other telephone in service in the local area. Each telephone
Telephony
Single-user circuit on a telephone communication system
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_line
The invention of the telephone was the culmination of work done by many different people, and led to an array of lawsuits relating to the conflicting
Invention_of_the_telephone
Dialling code for London in the United Kingdom
it has capacity for approaching 100 million telephone numbers. The code is used at 170 telephone exchanges in and around Greater London as part of the
020
American telecommunications equipment manufacturer
America, but also had a worldwide presence. With its line of automatic telephone exchanges, it was also a long-term supplier of switching equipment to the Bell
Automatic_Electric
Traditional analog landline telephone service
as Touch-Tone dialing, electronic telephone exchanges and fiber-optic communication into the public switched telephone network (PSTN). POTS was the standard
Plain_old_telephone_service
Topics referred to by the same term
Telephone Exchange Building may refer to: Telephone Exchange Building (Powhatan, Arkansas), listed on the National Register of Historic Places in Lawrence
Telephone_Exchange_Building
Telephone service provided via wire or cable
is a telephone service provided to a subscriber via cable or wire, i.e. metal conductors or optical fiber. The term differentiates a telephone service
Landline
Type of mobile phone
phone (also called a satellite telephone or satphone) is a type of mobile phone that connects to the public switched telephone network through orbiting satellites
Satellite_phone
invents the telephone switchboard exchange (later working with Edison). 9 October 1876: Bell makes the first two-way long-distance telephone call between
Timeline_of_the_telephone
Lantau Island Clearwater Bay – East Telephone Exchange Tower, 38 Clearwater Bay Road Causeway Bay – East Telephone Exchange Tower, 38 Leighton Road, Causeway
Telephone numbers in Hong Kong
Telephone_numbers_in_Hong_Kong
Network for carrying telephone calls
types of telephone network: Landline network Telephones must be hard-wired to a telephone exchange. This is known as the public switched telephone network
Telephone_network
Integrated telephone numbering plan of twenty North American countries
its respective numbering plan area. The telephone number consists of a three-digit central office (or exchange) code and a four-digit station number. The
North_American_Numbering_Plan
Telephone numbers in Canada are a component of the North American Numbering Plan (NANP). The fixed size of each telephone number consists of a three-digit
Telephone_numbers_in_Canada
Record that documents a telephone call
data record produced by a telephone exchange or other telecommunications equipment that documents the details of a telephone call or other telecommunications
Call_detail_record
1975 fire in New York City
On February 27, 1975, a fire broke out at the New York Telephone Company switching center at 204 Second Avenue and Thirteenth Street in the East Village
1975 New York Telephone exchange fire
1975_New_York_Telephone_exchange_fire
Japanese telecommunication company
NTT, Inc. (formerly known as Nippon Telegraph and Telephone Corporation), is a Japanese telecommunications holding company headquartered in Tokyo, Japan
Nippon Telegraph and Telephone
Nippon_Telegraph_and_Telephone
Cathedral city in Northern Ireland
Lisburn (/ˈlɪzbɜːrn, ˈlɪsbɜːrn/ LIZ-burn, LISS-burn) is a cathedral city in Northern Ireland. It is 8 mi (13 km) southwest of Belfast city centre, on the
Lisburn
Methods of delivering voice communications and multimedia over IP networks
Regular telephones can also be used for VoIP by connecting them to the Internet via an analog telephone adapter (ATA), which converts telephone signals
Voice_over_IP
Underground complex in Wiltshire, England
around 20 °C (68 °F). It was also equipped with the second-largest telephone exchange in Britain, a BBC studio from which the PM could address the nation
Central Government War Headquarters
Central_Government_War_Headquarters
Company that provides local phone service
Local exchange carrier (LEC) is a regulatory term in telecommunications for the local telephone company. In the United States, wireline telephone companies
Local_exchange_carrier
First all-electronic exchange in Britain
Highgate Wood telephone exchange was the first all-electronic telephone exchange in Britain. It was built in Grand Avenue, in the London suburb of Muswell
Highgate Wood telephone exchange
Highgate_Wood_telephone_exchange
provides telephone exchange-like telephone interface functionality. SLC remote terminals are typically located in areas with a high density of telephone subscribers
Subscriber_loop_carrier
Electromechanical telephone switch
electromechanical stepping switch telephone exchange system. It was developed by the Strowger Automatic Telephone Exchange Company founded in 1891 by Almon
Strowger_switch
Numbering method for assigning routing addresses for telephones
A telephone numbering plan is a type of numbering scheme used in a telecommunications network to assign telephone numbers to subscriber telephones or other
Telephone_numbering_plan
Brazilian telephone company (1973–1998)
Municipal Telephone Systems (S.T.M.), almost all of which had obsolete manual exchanges. Some larger cities were able to obtain automatic exchanges; for this
Telesp
Set of digits referring to a telephone exchange
number may have different lengths. It shows which exchange the remaining numbers refer to. A full telephone number is usually made up of a country code (required
Telephone_prefix
Telephone area codes for Toronto, Ontario
to a growing mobile telephone market and to competitive local exchange carriers, such as cable and voice-over-IP services. Telephone numbers are portable
Area codes 416, 647, 437, and 942
Area_codes_416,_647,_437,_and_942
Wired portable military phones
Field telephones are telephones used for military communications. They can draw power from their own battery, from a telephone exchange (via a central
Field_telephone
In telephony, the last part of the connection to the customer
traditional public telephone network, the local loop terminates in a circuit switch housed in an incumbent local exchange carrier or telephone exchange. Traditionally
Local_loop
Organization that provides telephone and/or other telecommunications services
telegraph and telephone services). Telecommunications companies are common carriers, and in the United States are also known as local exchange carriers. With
Telecommunications_company
American telecommunications firm
The Bell Telephone Company was an American telecommunications company active from 1877 to 1899. It was the initial corporate entity from which the Bell
Bell_Telephone_Company
Keypad that appears on some telephones
A telephone keypad is a keypad installed on a push-button telephone or similar telecommunication device for dialing a telephone number. It was standardized
Telephone_keypad
digital exchange was installed and was taken over by a privatised telephone operator, Gibtel, which also operate a GSM network. Direct telephone connections
Telephone numbers in Gibraltar
Telephone_numbers_in_Gibraltar
Type of telephone adapter
Ethernet port, and one or more foreign exchange station (FXS) telephone ports. Such devices may also have a foreign exchange office (FXO) interface for providing
Analog_telephone_adapter
Former telephony occupation
Before the advent of automatic exchanges, an operator's assistance was required for anything other than calling telephones across a shared party line. Callers
Switchboard_operator
Type of telephone carrier in the US and Canada
An incumbent local exchange carrier (ILEC) is a local telephone company which held the regional monopoly on landline service before the market was opened
Incumbent local exchange carrier
Incumbent_local_exchange_carrier
Signal indicating that a call is possible
telephony signal sent by a telephone exchange or private branch exchange (PBX) to a terminating device, such as a telephone, when an off-hook condition
Dial_tone
Hungarian inventor (1844–1893)
1844 – 16 March 1893) was a Hungarian inventor, telephone pioneer, and inventor of the telephone exchange. He was also the founder of Telefon Hírmondó.
Tivadar_Puskás
and Stockport, the city was (arguably) the site of the UK's first telephone exchange and a radio telephony service which was the forerunner of modern mobile
Telephony in Greater Manchester
Telephony_in_Greater_Manchester
Communication device
than dialing another station. Sound-powered telephones are not normally connected to a telephone exchange. The microphone transducer converts sound pressure
Sound-powered_telephone
Building in the City of London
for the Post Office Savings Bank. In 1902 it was converted to a GPO telephone exchange serving sections of London, and underwent several capacity expansions
Faraday_Building
Family of technologies that are used to transmit digital data over telephone lines
voice signal carried on conventional twisted pair cabling between telephone exchanges and customers. A patent was filed by AT&T Bell Labs on the basic
Digital_subscriber_line
modern day usage, "foreign exchange office" (FXO) and "foreign exchange station" (FXS) refer to the different ends of a telephone line in the context of voice
FXO_and_FXS
Telephone exchange systems by Ericsson
The AXE telephone exchange is a product line of electronic switching systems for digital circuit switching telephone exchanges developed by the Swedish
AXE_telephone_exchange
or territory. All local telephone numbers within the four areas have eight digits, consisting (mainly) of a four-digit exchange code and a four-digit local
Telephone numbers in Australia
Telephone_numbers_in_Australia
Contact information directory
named the Melbourne Telephone Exchange Company, White Pages Australia was founded in 1880 as Australia's first telephone exchange. It later became known
White_Pages_Australia
Portable device to make telephone calls using a radio link
portable wireless telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area
Mobile_phone
Skyscraper in Manhattan, New York, US
Worth Street. Designed in the Brutalist architectural style, it is a telephone exchange or wire center building which contained three major 4ESS switches
33_Thomas_Street
James McDade (aged 28), died after the bomb he was planting outside a telephone exchange in Coventry, England exploded prematurely. 15 November 1974: A patrolling
Chronology of Provisional Irish Republican Army actions (1970–1979)
Chronology_of_Provisional_Irish_Republican_Army_actions_(1970–1979)
Telephone service provider
services bloomed, the Bell Telephone Company had insufficient operating funds to quickly increase the telephone exchange network, resulting in Western
International Bell Telephone Company
International_Bell_Telephone_Company
Electrically operated switch
incoming signal onto another circuit. Relays were used extensively in telephone exchanges and early computers to perform logical operations. The traditional
Relay
Historic building in Melbourne, Australia
The Central Telephone Exchange, Melbourne is a building in Central Melbourne, Australia, constructed between May 1907 and early 1909 by the Reinforced
Central_Telephone_Exchange
Number for local emergency services
to the emergency telephone number were often routed over special dedicated circuits. Though with the advent of electronic exchanges these calls are now
Emergency_telephone_number
Type of shared telephone line
local loop telephone circuit that is shared by multiple telephone service subscribers. Party line systems were widely used to provide telephone service,
Party_line_(telephony)
This article shows the development timeline of telephone companies in Birmingham, England. Exchange names are in italics. Following the granting of a patent
Timeline of telephone companies in Birmingham
Timeline_of_telephone_companies_in_Birmingham
Telephone prefix in the international telephone numbering plan
A telephone country code is a country-specific telephone number prefix for international direct dialing (IDD), a system for reaching telephone service
Telephone_country_code
Research and scientific development company
engineers which had been supplying AT&T with such technology as telephones, telephone exchange switches and transmission equipment. During the early 20th century
Bell_Labs
This is a list of United States telephone companies serving traditional landline telephone exchanges. It does not include VoIP service providers, or cellular
List of United States telephone companies
List_of_United_States_telephone_companies
Telephone exchange in Canberra, Australia
The Deakin Telephone Exchange is an exchange established in 1965, the bottom floor of which was used in the NASA Communications Network (NASCOM) until
Deakin_Telephone_Exchange
Hand-cranked electrical generator
to ring the bells of other telephones on the same (party) line, and to alert an operator at the local telephone exchange. These were most common on long
Telephone_magneto
Topics referred to by the same term
software Telephone exchange, connecting telephone calls USS Exchange (1862), an American Civil War steamer All pages with titles beginning with Exchange All
Exchange
Buenos Aires Stock Exchange - MarketScreener". MarketScreener. Surperformance SAS. Retrieved 17 September 2023. "Form 10-K for Telephone and Data Systems
List of telecommunications companies
List_of_telecommunications_companies
Dialing code for Redditch in the United Kingdom
numbers on the manual telephone exchange which served Redditch until the early 1960s. The dialling code contains eight telephone exchanges which serve the towns
01527
Technology for telephone exchanges
Stored program control (SPC) is a telecommunications technology for telephone exchanges. Its characteristic is that the switching system is controlled by
Stored_program_control
Type of telecommunication company
states. An interexchange carrier handles traffic between telephone exchanges. Telephone exchanges are identified in the United States by the three-digit
Interexchange_carrier
Unincorporated community in North Carolina, United States
One long-distance telephone line . . . to the county seat of Concord (NC) . . . was available to the exchange. Individual telephone numbers were identified
Odell_School,_North_Carolina
American telephone service monopoly (1877–1984)
Verizon. In 1877, the American Bell Telephone Company, named after Alexander Graham Bell, opened the first telephone exchange in New Haven, Connecticut. Within
Bell_System
Telephone numbers in Japan consist of an area code, an exchange number, and a subscriber number. 001, 00xx, 002xx, 0091xx Carrier selection prefix 184
Telephone_numbers_in_Japan
Soviet and Russian internal phone system
operator, subscribers connected to each other using an automatic telephone exchange and a rotary dial called in Russian a vertushka. The existence of
Vertushka
Telephone company in California
The Pacific Bell Telephone Company (Pac Bell) doing business as AT&T California is a telephone company that provides telephone service in California.
Pacific_Bell
Exchange of information required to set up a telecommunications connection
principal characteristics. In the public switched telephone network (PSTN), in-band signaling is the exchange of call control information within the same physical
Signaling (telecommunications)
Signaling_(telecommunications)
an exchange-by-exchange basis for calls connected by manual operators. Subscriber numbers reflected demand in each area, with single digit telephone numbers
History of telephone numbers in the United Kingdom
History_of_telephone_numbers_in_the_United_Kingdom
United States historic place
Bell Telephone Exchange Building, also known as the Preston Telephone Exchange, is a historic telephone exchange located in the Powelton Village neighborhood
Bell Telephone Exchange Building (Powelton Village, Philadelphia, Pennsylvania)
Bell_Telephone_Exchange_Building_(Powelton_Village,_Philadelphia,_Pennsylvania)
BT technical and administration building in Greater Manchester
Dial House is a large BT telephone exchange, network connection site and administration building in Salford, Greater Manchester, in the United Kingdom
Dial_House,_Salford
Telephone country codes are telephone number prefixes for reaching subscribers in foreign countries or areas by international direct dialing (IDD). Country
List of telephone country codes
List_of_telephone_country_codes
British manufacturer of telecom equipment
Belgium. The London operation sold US-designed telephones and exchanges to fledgling British telephone companies. Because of the costs of importing products
Standard Telephones and Cables
Standard_Telephones_and_Cables
Village in County Down, Northern Ireland
Ireland Railways. Although small, Helen's Bay still has its own BT Telephone exchange. Local numbers exist in the following formats: (028) 9185 2XXX (028)
Helen's_Bay
Telecommunications connection selection method
the early analogue telephone network. When a call is made from one telephone to another, switches within the telephone exchanges create a continuous
Circuit_switching
Telephone switching system used in the UK
80%) of telephone traffic in large metropolitan areas is outgoing traffic, and it is distributed over many exchanges. A non-director SXS exchange system
Director_telephone_system
Real-time video communication
there existed image phones which exchanged still images between units every few seconds over conventional telephone lines. The development of advanced
Videotelephony
Village and parish in Surrey, England
panoramic views from certain tees. Puttenham used to have its own telephone exchange, consisting of two brick buildings near the Jolly Farmer public house
Puttenham,_Surrey
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