Phone line interference

If you are having problems sending or receiving a fax due to possible interference on the phone line, we recommend that you adjust the Equalization for compatibility to reduce the modem speed for fax operations.
1
Press Menu, 2, 0, 2.
2
Press Bsymbol.utri or Bsymbol.dtri to choose Normal (or Basic).
• 
Basic reduces the modem speed to 9600 bps. Unless interference is a recurring problem on your phone line, you may prefer to use it only when needed.
• 
Normal sets the modem speed at 14400 bps. (Default)
Press OK.
3
Press Stop/Exit.
Note Note
 
When you change the compatibility to Basic, the ECM feature is only available for color fax sending.