Hope i can help .First of all you should have a NTL and a BT master socket these are bigger than the ext sockets in most cases.If not the installer has not followed the working practice,ie when having NTL installed you should leave the BT master wired uo to the BT line .put a phone in the BT socket and ring the no.if it rings in the bt socket it has not been ported over properley .You should have a dial tone on your ntl line ring a mobile and check the no.if this is not your no. than you have been given a temp no. until Bt port the no.What happens is Ntl say yes we can do it but sometimes Bt want a couple of days notice to do this and thats why you get a delay
