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Digital Subscriber Line

A Digital Subscriber Line (DSL) connection uses existing copper telephone lines to connect homes and small businesses. Because the DSL line can carry voice and data, you do not lose access to your phone line when using your computer. DSL's always-on technology (well sort of) provides high-speed access comparable to cable modem access. Speeds typically range from 512Kbps to 1.544Mbps for downloads and slower for uploads, around 128Kbps. (The change in speed holds true for cable modems also; upload speeds are typically slower than download speeds.)

Consumers can have dynamic or static IP addresses for DSL. A static address remains the same over time, whereas a dynamic address can change every time you log in. In some cases, you pay extra for a static address. Many small businesses purchase static IP addresses because you can buy faster connections and still pay less than it would cost for a full or fractional T1 connection for a business. For the consumer, this means that you have several choices for using DSL, if it is available in your neighborhood.


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