I have a remote clinic that has come up with a new problem. They replaced the toner in their Dell All-In-One C2665DNF copier/fax/printer and now they can not fax out. It goes through the motions (and sounds) but after the screeching stops, it gives them a communications error. The credit card machine is on the same phone line and it works fine.
The rub is they can receive faxes just fine.