In message , Bill Wright
writes
Andy Burns wrote:
N_i_c_k wrote:

There is a sort of junction box where the outside phone cable comes
into the house
With screw connections, or jelly crimps?
So long as you use proper CW1308 cable, make sure you don't short
anything out while doing it and make a neat job you should be fine,
taking a photo before can be helpful.

But remember that BT put 1kV into the phone cable at random intervals
to discourage DIY.

Fred

I used to have a commercially made device that did just that. It was a
1960s vintage bug detector and destroyer. Not sure how BT would react
to its use today.

It had a big red button marked "Destroy" !!!!!

--
Bill
( A different one )