Telephone line interference

If you are having problems sending or receiving a fax due to possible interference on the telephone 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(for VoIP)).
Basic(for VoIP) cuts the modem speed to 9600 bps. Unless interference is a recurring problem on your telephone 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(for VoIP), the ECM feature is only available for colour fax sending.