The fax machine is set to dial out, by the default, using touch tone dialing. If the telephone line is set for rotary pulse, the fax will not dial out. Change the telephone line type on the operator panel as follows.
Make sure that the machine is turned on.
Press the Menu button repeatedly until Faxsettings appears.
Use the button to select FAX User settings, then press the OK button.
Use the button to select Telephone line type, then press the OK button.
Use the button to select Rotary pulse or Touch tone , then press the OK button
button to select FAX User settings, then press the OK button.