What is causing a very loud buzzing sound when I try to dial

"Hi,

It sounds as though you may have a faulty telephone line. (has it been raining where you are?)

Have you got any other devices, such as an ADSL internet service or an home security alarm system connected to the phone line?

If so, temporarily disconnect them from the phone line and check if the phone now works OK.

If not, have you got an old corded telephone that you can plug into the telephone socket, just to prove that the problem is not with your Uniden portable telephone?

If it still doesn’t work OK, disconnect your telephone from the telephone socket and then contact your landline phone service provider and tell them about your phone problem and ask if they can test your phone line.

Tell them that you have disconnected all the devices (if more than one) from the phone line in your premises. This way they’ll know that when they test the line that they’re only testing the line and not any equipment attached to it at your end.

Obviously you’ll have to call them from a working phone e.g. a mobile phone or perhaps a neighbour’s phone."