For rural users too far from the central office to qualify for ADSL, why doesn't the phone company just use a second (or more) pair of wires from the bundle on the pole, effectively doubling the wire size, e.g., in
I don't know about your rocker but it doesn't work that way.
Remember, 9 women can't make a baby in 1 month no mater how hard they try.
In addition to having babies simultaneously, both lines will have noise-- and the noise will most likely be from the same sources, so it will be correlated. This means you won't get any improvement in the signal-to-noise ratio from combining them. You'll just get the same signal plus the same noise, only louder.
Matt Feinstein
-- There is no virtue in believing something that can be proved to be true.
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