I’ve no idea what went wrong, but between 22:34 last night and 07:00 this morning my DSL line vanished, even to the extent that there was no DSL noise on the line when I didn’t use a microfilter between the handset and socket. I logged a fault with my ISP and expected a couple of days wait as there was nothing flagged as broken but for some unexplained but fortuitous reason it’s all back again now.
Apologies if you tried to use anything here in the past 12 hours or so: hopefully they’ve plugged the wire back in the socket at the exchange and used some sticky tape to stop anyone tripping over it again…