setup the product's basic fax settings using the Fax Setting
Wizard. This wizard is automatically displayed when the product is
turned on for the first time. You can also change these settings
individually from the Fax Settings menu.
the Select Line Type screen appears, select the correct line type.
If the Select Dial Tone Detection screen appears,
select Disable. However,
disabling the dial tone detection function may drop the first digit
of a fax number and send the fax to the wrong number.