Central Office Telephone company facility where subscribers lines are joined to switching equipment for connection to each other, locally and long distance Sometimes the same as the overseas term "public exchange"
(Central Office) The telephone company building where subscribers' lines are joined to switching equipment for connecting other subscribers to each other, locally or long distance
a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
A telephone company office that functions as a switchboard, allowing one subscriber to communicate with another
Hub or switching station for the telephone network Each CO serves a specific geographic area
A colorless, odorless gas resulting from the incomplete combustion of fossil fuels Over 80% of the CO emitted in urban areas is contributed by motor vehicles CO interferes with the blood's ability to carry oxygen to the body's tissues and results in numerous adverse health effects CO is a criteria air pollutant
Central Office, in reference to the phone company's central switching station for a given area
Short for Central Office, as in a telephone company's central office In order to qualify for DSL service, you must be within 12,000 feet (or just over two miles) of your CO Back to Top
A facility of a telecommunications common carrier 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
A circuit switch that terminates all the local access lines in a particular geographic serving area; a physical building where the local telephone company's switching equipment is found DSL lines running from a subscriber's home connect at their serving Central Office