How do you know that none of the cable is twisted pair? BT has been using twisted pair drop wires and underground cables for a very very long time.

In reply to a post by MHC:

How do you know that none of the cable is twisted pair? BT has been using twisted pair drop wires and underground cables for a very very long time.

Because I live here and you do not.

And you have climbed the pole and examined the cable from there and in all the ducting, joints etc to the exhange?

I'm beginning to wonder if was correct to say back to the last joint.

Does that make any difference? You will be still using two wires which are not twisted around each other. They will be twisted around the wire in the other pair. So will be untwisted all the way back to the exchange.

No, but niether have you and MHC.

Things maybe different where you live, with fairly modern equipement. Not everything is the same especially in rural villages with telephone cabling dating back to the 1950's when the General Post Office installed it.

With reference to the BT engineer, BT will not replace anything just because it's old.

With good reason, as copper was chosen for its longevity

OK, but you are wrong.

Yes, you might have an untwisted pair on an old drop wire to the pole. But after that, no. Even the old lead and paper core cables are twisted.