@ Cybercamel,
If the "odd things" are cross talk then one reason could be crossed pairs or shorts between one leg on different pairs.
I've no doubt RazPag can give us a veritable encyclopaedia of such war stories !
Kind regards,
Walter
That an invite Walter, or an indication I tend to drawl on ... ??
Cybercamel ..... those "Odd things" could be a result of umpteen scenario's. But, if you can actually hear other 2-way conversations,
and your number appears to be the CLI (Customer Line Identifier) when other EU's utilise the 1471 facility to see who's called whilst they were out etc, I would hazard a guess at 'Double-jumpered' in the exchange.
Easy done, as there are thousands of terminations on LIC blocks and the ports are close enough together to accidentally connect to another working circuit. Of course, as well as completely screwing up your DSL, you will get the 'Overhearing' scenario you mention if you lift the handset when the other person is on their phone. Unfortunately, when the SP test your line, if the other party are NOT using the phone line, the result will come back LTOK (Line Tests OK) . The only giveaway that something is wrong will be the line length (presented in Km's). Whereas your line will be usually 3Km (as an example), it would now show something like 12Km.
If the SP doesn't cross-check what your base-line attenuation, or line-length was when the line was first installed, and then compare it to the present time line test,then it can be easily overlooked and the job closed off as LTOK.
Walters deductions are of course quite correct, and the same scenario he relates to ("
shorts between one leg on different pairs") , could happen if 2 dropwires at the DP get trapped/crushed together in the lid when the engineer puts it back on. Thus, culminating in both 'live' legs (-50v) being in contact with one another and you will have the 'Overhearing' situation again. However, on this type of fault, as just 1-leg is affected, the line test would return a '50v battery contact' fault.
There's plenty more, but I shall refrain for the sake of the DG.