[spike7451]

With regards to the phoneline,it is either ran internally or externally.Make sure the Telco Master socket (known as a CTE-5) is mounted next to the BT master socket (NTE-5) otherwise,if you have any extensions in the house running off the BT,you'll lose them.If you are porting your BT telephone number to NTL & it's not due for a few days after install,get the crew to book a call so that when your Port is done,the extensions can be swapped from BT to NTL.
Spike