jim <(E-Mail Removed)> wrote
>A renumber of a BT line does not involve a stop / start therefore the
>broadband will continue on the existing line no matter what the line
>is renumbered to. All you have to do is inform your ISP of the new
>number before it switches over so they can update their records
Not sure that is correct.
In my experience, a renumber cuts off the existing ISP.
In fact, asking BT to renumber a line is the only way to cut off an
ISP with whom you have a dispute, and who (under the terms which BT
offers to ISPs) is able to hog the line indefinitely. I had a BT man
explain this to me; short of the ISP going bust, BT will not release
the line to another ISP, without the original ISP's consent. This is
to prevent people not paying their ISP's bill and then just changing
to a new ISP. Unfortunately, these terms enable crooked ISPs to screw
customers through a dispute, while preventing them going elsewhere.
Unless you ask BT to renumber the line; then the old ISP gets cut off
and you can get service from a new one

It's actually a little
complicated, since the previous ISP still "owns" a part of the line to
BT, so BT have to do a bit of a clean-up, but it works. Takes a few
days.