Montblack wrote:



Now I'm confused. Is my DSL running at higher frequencies, over the same
(single) wire strand that my voice is running on? Or is it running on the
second wire strand, in my standard household wire - which contains 2 wire
strands? Or is it using both strands?

It takes two wires to have a voice line. There are typically 4 wires in
a residential phone line; red, green, yellow and black. Normally the
first phone number uses the red and green wires. The other two will be
for your second phone number, should you get one. The DSL uses the same
two wires as your first phone number, with a filter to keep the two
things separate.