HDSL is a type of broadband technology that allows for digital data to be sent at high speeds along already-existing copper telephone lines, while allowing for the transmission of analog (voice) data at the same time. HDSL was the first DSL technology to be developed. It transmits both upstream (sent) and downstream (received) data at the same speed (usually about 1.5 Mbps).

About the Author: Jeremy Maddock is the owner of a quickly growing telecommunications industry news website.

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