Confirm phone line is active by lifting the handset phone to see if you can hear dial tone -> if not call phone company
If you have dial tone confirm that phone "cord" is good AND it is plugged into the correct port on the back of the fax, should be marked [LINE].
If not this easy, most likely a LCU PCA... at which point it will cost just as much to fix as it will to replace.
Joe, December 2007