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CO (Central Office)
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Note: Many topics at this site are reduced versions of the text in "The Encyclopedia of Networking and Telecommunications." Search results will not be as extensive as a search of the book's CD-ROM.

Related Entries

Circuit-Switching Services

Communication Services and Providers

DSL (Digital Subscriber Line)

Last Mile Services

LATA (Local Access and Transport Area)

Line Conditioning

Local Loop


Multiplexing and Multiplexers

Network Access Services

NPN (New Public Network)

PoP (Point of Presence)

POTS (Plain Old Telephone Service)

RBOCs (Regional Bell Operating Companies)

Residential Broadband

Service Providers and Carriers


T Carriers

Telecommunications and Telephone Systems

Telecommunications Regulation

Wireless Local Loop

Web Links
Click here for newer links

"Expecting 56k (V.90/X2/K56)?" (describes phone-line problems)

CO (Central Office) locator (to determine how far you are from your CO)

New Web Links





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