DSL

Digital Subscriber Line (DSL) service sends a high-speed digital data signal over regular telephone wires. In most cases, DSL signals can be sent over the same telephone wire that serves your telephone, at the same time. This means that you can usually get DSL service installed without needing an extra telephone line. The most common DSL service is called asymmetric, or ADSL, because it receives data at 128Kbps to 6000Kbps but sends at a lower rate. (This is fine because most web surfing involves sending a very small request and receiving a large amount of data.)

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DSL varieties include asymmetric, symmetric, high-speed, and DSL over ISDN, ...

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