Life: inside IT: Damned DACS

Jack Schofield replies: DACS is an expensive system that digitises communications between your phone and the local exchange. This improves the line. However, BT only installs DACS hardware to split one line between two houses, or to provide one user with two lines, because it is cheaper than running...

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Bibliographic Details
Published inThe Guardian (London)
Main Author Roger Loose Jack Schofield
Format Newspaper Article
LanguageEnglish
Published London (UK) Guardian News & Media Limited 19.05.2005
Online AccessGet full text

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Summary:Jack Schofield replies: DACS is an expensive system that digitises communications between your phone and the local exchange. This improves the line. However, BT only installs DACS hardware to split one line between two houses, or to provide one user with two lines, because it is cheaper than running extra wires to the exchange. Unfortunately, DACS converts back to analogue signals at the exchange, which messes up the V.90 modem system. According to the DACS FAQ ( http://frank.gwc.org.uk/ ~ ali/dacs/ ), you should get 33.6kbps, so try setting this speed. Without DACS, you should get 44-56kbps, so it does limit your bandwidth.
ISSN:0261-3077