I'll get TTB to run another line test tomorrow. I've run a test of ringing in with my mobile and all extentions disconnected and BB still drops. Only NTE in the circuit.
Good luck, the usual tests don’t always pick up an HR, unless it’s virtually one leg dis.
A good trick to fault it is to put your tester in sync, look at the error counters, and keep watching whilst you break dial tone with your butt, you can often see a big rush of corrected errors, maybe even spilling over into HECs … it might even drop sync, and that’s what you chase.
Trouble is, these days, many use crock clips on the pair, straight to the tester, so you can’t put a filter in that set up.
The old adapters that allowed this were becoming hard to come by. The workaround is a rigged up NTE and SSFP with a fly lead…
Anyway, enough flannel for now.
54-46 was my number