i recently moved into a new house 2 months back and we exchanged our sky to our new house, when they came we didnt have our phoneline installed and they installed the box perfectly, but when they came to install the fone they installed it on the other side of the house, i recently inquired about sky multi room and they said it will cost me 54 pounds each room and that they would send someone out if i definatly wanted it, so maybe you wont need a phoneline for multi room just the dish signal. the phoneline you just need for sky box office or games ect