What is a VDSL modem?

A VDSL modem is a type of communication format, and is a machine that converts between analog signals on telephone lines and digital signals from the Web. "Modem" means "modulator-demodulator" in Japanese, and using this device enables Internet communication via telephone lines. VDSL is an abbreviation for "Very high bitrate Digital Subscriber Line" and is the fastest communication method among the methods (xDSL) that use existing telephone lines. VDSL is mainly used for Internet lines for collective housing such as condominiums and apartments.

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