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How does DSL work?

What is DSL: How does DSL Work?

How does DSL work? Traditional voice signals travel over phone lines on a very limited frequencies. Local telephone cables, however, can carry signals at frequencies well above and below the frequencies used by voice. DSL takes advantage of these unused frequencies to transmit data. This technology was first used almost two decades ago, but only recently has become important. For less specific information on how DSL works, see "What is DSL?"

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