Haunted phone line

Spent some time today troubleshooting an apparently dead phone line. I had to go all the way back to where the connections are presented from the switch. When I connected the test phone to the equipment there though, I got no dial tone, just a sinister hissing with vague hints of voices. Deciding it was a short, I ripped out the wiring and redid it, with the same thing. It was really quite disturbing, the sounds were like voices but you couldn't hear what they were saying. At that point I gave up, ripped out the wires again and rewired the phone line to a different socket, labelling the original as 'Faulty, possibly haunted'.