Sharp FO-DC525 FAX Key number

Your product key should be on the front cover of your NIC owners manual not your fax manual. If you have lost or did not receive a NIC owners manual you will have to call SHARP and give them your NIC serial number S/N. You will receive your product key within 3 business days. Try calling this number they MIGHT be able to help you. 1-800-847-0281. Before you call you need to printout a NIC settings list which contains your NIC serial number. Press menu 2 down arrow(which is below your green start key) to network settings, press start, then down arrow to network setting list, press start. print either list. If the instructions are wrong I'm sure SHARP should be able to help you out.