A telephone switching system operated by the public telephone company to which all residence telephones and business telephone systems within the local service area are connected.
(1) Location of telephone switching equipment at which customer’s lines are terminated and interconnected. (2) Switching center that provides local access to the public network. Synonyms: end office, local dial office, wire center or switching center.
(1) Location of telephone switching equipment where customers' lines are terminated and interconnected. (2) Switching center that provides local access to the public network. Sometimes referred to as: End Office, Local Dial Office, Wire Center or Switching Center.
Switching unit in telephone system providing service to general public.
The local switching facility of a telephone company to which telephones are connected.
Any network switching system, although usually a local switching system. Sometimes refers to a telephone company building which houses a switching system.
The telephone company facility where the automatic switching equipment or Switchboard is located.
The telephone company building where subscriber's lines are joined to switching equipment for connecting other subscribers to each other, locally and long distance.
A phrase used to describe a building facility housing telephone equipment used to switch telephone traffic between calling and called parties. Sometimes referred to as switching center, exchange, community dial office, etc.
Location where telecommunications subscribers are connected to the local exchange carrier to complete the 'local loop.'
A telecommunications term used to refer to the physical location of the local telephone company's building where home and business subscriber lines are connected to the rest of the network. For the purposes of Internet access, the central office switching equipment receives data transmission from a customer's location and then threads those transmissions to the Internet over the telephone companies' or third party networks.
The switching office that connects the mobile telephone switching office (MTSO) to the public switched telephone network (PSTN).
A local telephone company facility where subscriber lines are linked to switching equipment that connects subscriber lines to each other, locally, or to long distance lines. (source)
CO One local Class 5 Switch with lines to customer locations. (Usually less than 100,000 telephone lines per Central Office.) COs are usually owned and operated by LEC s or BOC s. COs have connections to Tandem ( Class 4 Toll Offices) and often connect directly to other COs and IEC s like LDDS WorldCom, AT&T, MCI, Sprint, etc. A CO is a major equipment center designed to serve the communications traffic of a specific geographic area. CO coordinates are used in mileage calculations for local and interexchange service rates. A Non-Conforming CO is one that does not (yet) support Equal Access.
a local telephone company facility that houses the switching system and related equipment needed to interconnect telephone calls for customers in the immediate geographic area. Every LATA must have at least one central office.
The building and associated equipment through which telephone voice and data circuits are switched and/or transported.
a switching system that connects lines to lines, lines to trunks, and trunks to trunks. These systems are operated by local telephone companies. The term sometimes refers to a telephone company building in which a switching system is located and sometimes includes other equipment (such as transmission system terminals).
The telephone company switching equipment that provides local exchange telephone service for a given area, designated by the first three digits of the telephone number. The telephone equipment housing for a specific geographical area.
A facility that contains the lowest level of switches that comprise the public telephone network.
A local telephone company switching facility that covers a geographic area such as a small town or a part of a city. Known as the "CO" (see-oh) and also called a local exchange (LE), it is where subscribers' telephone lines in the local loop are terminated and connect to intracity and intercity trunks. There are more than 25,000 central offices in the United States.
(usually plural) the office that serves as the administrative center of an enterprise; "many companies have their headquarters in New York"
a building in which subscriber lines are joined to switching equipment for connecting other subscribers to each other
a building in which telecommunications carriers house switches used to transfer calls from the calling party to the called party
a local switching facility which routes voice and data over telephone lines
a telephone company facility containing the switching equipment linking customers with public voice and data networks within and outside of the local service area
In telephone communication in the United States, a central office (CO) is an office in a locality to which subscriber home and business lines are connected on what is called a local loop. The central office has switching equipment that can switch calls locally or to long-distance carrier phone offices.
The network center for a telephone network.
A synonym for switching center also referred to as a telephone exchange.
Incumbent carrier facility where subscriber lines are connected to ILEC switching equipment.
Central Office. The location where the TransEdge DSLAM's reside.
A location where there is an assembly of equipment that establishes the connections between subscriber lines, trunks, switched access circuits, private line facilities, and special access facilities with the rest of the telephone network.
The office of the Department in Canberra where the Aged and Community Care Program is managed and administered nationally.
A telephone company facility that joins subscriber telephone lines to switching equipment. This allows subscribers to connect to one another, through local and long distance connections.
In the United States, the place where communications common carriers terminate customer lines and locate the equipment that interconnects those lines.
Local telephone company's central switching equipment location where calls are switched. [Back to Glossary Table of Contents
A telecommunications common carrier facility where calls are switched. In local area exchanges, central offices switch calls within and between the 10,000 line exchange groups that can be addressed uniquely by the area code and first three digits of a phone number.
Telephone company switching office. This is where you would find the local telco switch that connects to your telephone.
Local switching center. The name is historically derived from the point where operators in an office were the switching function, connecting and disconnecting calls manually. This evolved over time into the first electronic switch in 1960 known as the No. 1ESS, and to today's electronic TDM-based switches.
Telephone company facility housing switching equipment for interconnecting lines.
A LEC (Local Exchange Carrier) office that has a Switch.
The location where the phone company equipment and New Edge equipment reside.
The location of equipment necessary to operate a telecommunications system to provide service to the general public.
AKA – wire center. This is a building in your local area where all of the telephone lines come to. This is the central building where all of the telephone dial tone comes from. The ILEC or RBOCs maintain the central office (CO).
The telephone company's local facility that provides telephone service in your area.
Facility containing telephone equipment where customers' calls are switched and transmitted.
A telephone company facility where customers' lines are connected to switching equipment so that they can call other numbers, both locally and long distance.
A local exchange carrier switch where telephone lines interconnect.
Belonging to your local phone provider, this is the building that houses the phone equipment for your area, such as switches. DSL lines run from the customer's home to this office. It is the distance from this office that determines whether or not you can get DSL service in your home, and what speeds you qualify for. Usually, if you are within about 18,000 feet from the central office, you are able to get some form of DSL service.
A telephone company facility for switching signals among local telephone circuits; connects to subscriber telephones. Also called a switching office. Outside of the US this equipment location is generally referred to as an exchange.
A location in which large telecommunication devices such as telephone switches and network access facilities are maintained. These locations follow strict installation and operation requirements.
The Central Office or C.O. is the phone company switching center. Every customer is served out of a given C.O. Distance to the C.O. determines availability and speed of DSL to a particular location.
International headquarters of the Society; located in St. Louis, Missouri.
The common term for the location of your telephone service providers switching equipment. All telephone and data circuits 'hub' to this location for switching and routing.
Refers to equipment located at a Telco or service provider's office.
A telecommunications carrier's facilities in a local area in which service is provided where local service is switched to long distance
This is a place where lines are joined to switching equipment (which control connections).
A facility owned by the incumbent operator where subscriber lines are connected to the local switching equipment, such as a local exchange. See Also: Broadband
A facility owned by the incumbent operator where subscriber lines are connected to the local switching equipment To top
A secure, self-contained telecommunications equipment building that houses servers, storage systems, switching equipment, emergency power systems, and related devices that are used to run telephone systems.
Telephone company’s building where end users' lines are joined to switching equipment that connects other end users to each other, both locally and via long distance carriers. The central office contains the associated inside plant network elements required to perform this function, such as distribution frames, interoffice facility termination points, and so on. Also known as End Office and Entity.
A telephone company faciliy where the local telephone lines terminate. The CO houses the equipment required for switching voice communications across the telephone network. Special equipment is set up at the CO to support DSL service.
(CO): Also called a wire center (a switching unit in a telephone system): the smallest subdivision in the telephone system which has relatively permanent geographic service boundaries.
Location where the phone lines in a geographic area are aggregated.
The telephone company's local facility providing telephone service in your area. Likened to a node or hub. If the distance between your location and the central office switch exceeds 18,000 feet and/or the signal loss exceeds 35.0 dB, a repeater must be installed to allow ISDN service.
This is a centralized office where a local telephone company's infrastructure equipment is located for a specific area of service.
The nerve center of the telephone system.
Depending on the locale, the same as Intergroup.
Building that houses local switching equipment and serves as the primary operating and service center for all telephones in its geographical area.
A public switch, directly connected to a number of telephones in a given geographical area.
The switching equipment that provides local exchange telephone service for a given georgraphical area,designated by the first three digits (NNX or NXX) of the telephone number.
Usually refers to one of two meanings: 1) The local Telco building that houses telephone equipment, and where local loops terminate. 2) The Telco voice switch that provides dial tone. Often referred to as just "CO". Typically, the CO houses one or more DSLAMs that make DSL possible. But, increasingly, DSLAMs are being deployed remotely.
Telephone company facility at the center of the local exchange that contains the equipment required for switching telecommunications traffic.
An office with a university–wide administrative function. (For example: University Benefits, Payroll, and Purchasing.)
A local telephone company wiring office and switching center where telephone exchange service is terminated for purposes of interconnection to the public telephone network.
A telephone company facility that handles the switching of telephone calls on the public switched telephone network (PSTN) for a small regional area.
The facility of a telecommunications common carrier where calls are switched.
A secure building containing key equipment, such as switches, necessary for voice and data networks. CLECs have the statutory right to collocate and interconnect their equipment in an ILEC's central office.
Can refer to either a telephone company switching centre or the type of telephone switch used in a telephone company switching centre. The local central office receives calls from within the local area and either routes them locally or passes them to an inter-exchange carrier (IXC). On the receiving end, the local central office receives calls that originated in other areas, from the IXC.
The facility at which individual telephone lines in a limited geographic area are connected to the public telephone network.
Physical building where switching equipment is found.
The site that contains the local telephone company's equipment that routes calls to and from customers. This site also contains equipment that connects customers to long distance services and internet service providers.
The location where the common carrier maintains the switching equipment and where customer telephone lines and trunks terminate.
(CO): A common carrier switching office in which users' lines terminate. The nerve center of a communications system.
A switching system that connects lines to lines and lines to trunks. The term is sometimes used loosely to refer to a telephone company building in which a switching system is located and to include other equipment (such as transmission system terminals) that may be located in such a building.