I cannot receive faxes on my lexmark X4270. It will ring but nothing come through

Please go through the following checklists:

• Make sure the that the fax line is working. To check, insert a telephone device straight to the fax line. You should get a dial tone.
• Make sure the telephone cord from the phone jack in the wall is plugged into the Line port on the back of your Lexmark printer.
• Assign the correct fax number on the printer.
• If you have an answering machine connected to the same line as the fax, set the answering machine to answer incoming calls before the printer does. Increase the number of rings by a factor of 3 over the answering machine. For example, if the answering machine is set to pick up on 4 rings, set the printer to pick up on 7 rings.
• If you have a voicemail feature in the same line as the fax, you may subscribe from your phone service provider for a distinctive ring pattern feature. You can program your printer to have a distinctive ring pattern and phone number for incoming faxes.