Question about 10 day stabilisation period

This may be a stupid question, but I'll ask it anyway:

If you already have a broadband connection but are changing ISP, do you have
to go through another stabilisation period, or is at a one-off process the
first time you get a BB connection?
--
Hungerdunger
To reply by email, remove the MarX from my address

"hungerdunger" <(E-Mail Removed)> wrote in message
news:fji0ss$h4j$1$(E-Mail Removed)...
> This may be a stupid question, but I'll ask it anyway:
>
> If you already have a broadband connection but are changing ISP, do you
> have to go through another stabilisation period, or is at a one-off
> process the first time you get a BB connection?
> --
> Hungerdunger
> To reply by email, remove the MarX from my address
>

Various broadband forums seem to be full of people who have done an ISP swap
and subsequently had a low profile for a few days.

When I had a BT engineer connect new phone lines after an intermittent line
problem, it took 3 days to gradually creep up to its max.

"hungerdunger" <(E-Mail Removed)> wrote in message
news:fji0ss$h4j$1$(E-Mail Removed)...
> This may be a stupid question, but I'll ask it anyway:
>
> If you already have a broadband connection but are changing ISP, do you
> have to go through another stabilisation period, or is at a one-off
> process the first time you get a BB connection?
> --
> Hungerdunger
> To reply by email, remove the MarX from my address
>
It is forced each time something is varied, such as going to a new ISP.