My primary BB feed is NTL however I also have BT BB as a backup.
Due to limitations at the Exchange the speed I get is useless & has never been above 1.2MB in the two years I've had it installed. During that time I regularly test the linespeed using this site:
Speedtest.net - The Global Broadband Speed Test
(simply click on Start Test)
I heard a few good things about the BT iPlate so I finally got around to ordering & fitting one of these this week (installation took 30 seconds).
Result: Instant doubling of speed up to 2.4MB!
Anyone with a naff BT BB connection may want to consider trying one of these.
I bought mine here:
Review BT I-Plate (iPlate) (iPlate)
(check out the other reviews)
Simple guide to fitting them here:
[nomedia="http://www.youtube.com/watch?v=JbHbOJIsTPw"]YouTube- Installing the BT I-Plate on an ADSL master socket[/nomedia]