Be wary, the cable routing may not be the "obvious" one.
The cabinet for my estate is literally across the road from my front door; and the BT Terminating Box is just inside my front door.
Geographically, my house is the second nearest to the box, the house opposite being nearest, with the cabinet by its garden fence.
The estate was all pre-wired, underground in 1967.
My phone line runs eastwards to the far end of the seventh house on my side, where it comes to the surface in a small, cast aluminium box, about one foot high, three inches by three inches cross-section with an "arched" top.
The elctricity board of the period used similar units, a very obvious one is outside a pub on the High Street.
The cable then apparently crosses under the road and back to the cabinet.
So to a total length of about 125 yards, to cover 25 yards.
I was not aware of the routing until I had to call out BT for extreme noise on the line, which I suspected was generated in the Exchange as amongst the noise were "engineering test tones".
The BT lad surprised me when he drew my attention to this small junction box, in which he re-made the wire-wrap connections on my line, as well as in the main cabinet.
This did not cure the intermittent noise; but did improve the connections when there was no noise, back in those dial-up days.
After one visit by an invetigatory engineering team, which found nothing wrong with my modems etc, the noise persiisting with a simple phone connected in the Master Socket, I managed to record the sounds.
This led to eventual agreement that it was coming from the Exchange.
As a result, our phone was transferred on to a newer frame and system - resulting in a change of phone number.
BT left a message on our answering machine - but this did not include the new number.
My wife phoned, enquiring what the new number was. "Can't divulge - it's ex-directory!"
After 20 minutes discussion, the BT Staff agreed to call the number and give the number to whom-so-ever answered - my wife, of course.
Our old number was clearly prionted in the relevant Phone Directory - so not "ex-directory".
My wife was the Senior District Nursing Sister for the area, on-call etc - AND the line was a "RED-CARD" line, with almost top priority for repair at any time!
Allegedly on the same priority level as the Police etc.