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What standard does BTs ADSL modem adhere to?

April 26, 2017adhere ADSL BT modem standard

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What standard does BTs ADSL modem adhere to?

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Various forms of ADSL signal modulation are possible but the two more prevalent are: Discrete Multi-Tone (DMT), and Carrierless Amplitude modulation Phase modulation (CAP). DMT uses interleaving to achieve good error performance and has become the international standard. BT evaluated both DMT and CAP modems during their extensive trials throughout 1998 and 1999. However, their commercial ADSL based services will use DMT. Alcatel and Fujitsu will supply these modems.