My answerphone does an auto 1471 look up, and in the past couple of hours it has received calls but with no message left. The number it retrieves is 0160 438 4600.
I have dialled this number but get the usual bleeps and buzzing you get if you dial a fax machine. I have tried to send a fax but failed, could this be a modem, and how can I trace the owner to ask them to sort this out.