ok, this is my first post... wow! exciting stuff this. yes it does require physical access to your phone, the common one is known as a "beige box" which is basicly a phone with crocodile clips on it that u attatch to the line. this can be done anywhere upto and including your local exchange, but is normaly the junction box at the end of the road, if theres scratch marks etc on your ouside box (attatched to your house) keep a look out on it, film it maybe? catch the little sod in the act and get him busted.