[APS]

What he did might not have been illegal, as it depends who paid for the original wiring in the house. I know this because I have a newish house that was wired by the builders throughout with telephone sockets - at my expense as ultimately I paid for it in the price of the house. Cables were installed to the front of the house both by BT and NTL. When I took over the BT cable was connected (but not functional) to the telecon junction outside the house. I went with NTL (partly because BT wanted to charge 99 GBP for connection) and told the engineer to unwire the BT wire and connect his line directly to the internal wiring.

Somewhile later a BT salesman visited and grumbled that NTL should not have done that. I asked him did BT pay for the wiring in my house, which they had not, so he went away and I haven't heard from them since.

APS