Let's be honest & realistic here-how many people don't have a live working landline phone in their house??
I would say very few, so at the end of the day the vast majority off peeps will be better off without ntl as they are paying for a phone line anyway, so it may as well be a BT one (with caller I.D), with a nice reliable DSL package from a proper ISP that puts it's customers first, than with ntl who clearly don't give a to$$ about their customers, & who know that the only way to get customers to take their inferior phone line, is to force it upon people.
Another nice piece of marketing ntl.