With so few people having / using POTS telephones these days, it is
really hard to explain to people that the quality of the line affected
the quality of the data. Most of the time when I turn up to fault-find a
xDSL line, I start by plugging a £10 handset into the line, and then
have to tell them it is a voice fault and we need to report it to the
telephone company, not the broadband company. They usually just don't
get it.
My rule of thumb is that with HiFi, cheap digital is better than cheap
analogue, and expensive analogue is better than expensive digital, but
in data transmission systems it is the other way round. A cheap analogue
fix is always better than even an expensive digital fix.
:-)
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