Thanks to you all.
This is what I did: I lurked in the street and found a parked BT Openreach van. When he came back I told him the story. After he had finished his round he phoned me (mobile of course - - no landline....) and popped back at 6.30pm. He reconnected two wires in the external...
This is a question for someone who understands BT wiring.
My property used to be in single ownership. There were two landlines controlled by the owner, one upstairs and the other in the basement. Both were working yesterday. Then I made a fatal error...
The lines comprise two newish...