BT has lowered the number of registrations needed for some telephone exchanges to be converted to broadband in a bid to speed up its roll-out across the UK.

If sufficient demand can be plotted through people registering their interest, BT converts the exchange to broadband.

BT has reduced the threshold for 388 exchanges and also set "trigger levels" for a further 87 areas.

It will upgrade an exchange as soon as it hits its trigger level.

www.bt.com