Telephone line interference

If you are having problems sending or receiving a fax due to possible interference on the telephone line, you can change the compatibility setting, which reduces the modem speed to minimize errors.
1
Press Menu.
2
Press Bsymbol.utri or Bsymbol.dtri to choose Fax.
Press OK.
3
Press Bsymbol.utri or Bsymbol.dtri to choose Miscellaneous.
Press OK.
4
Press Bsymbol.utri or Bsymbol.dtri to choose Compatibility.
5
Press Bsymbol.ltri or Bsymbol.rtri to choose High, 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.
High increases the modem speed to 33600 bps. (factory setting)
Press OK.
6
Press Stop/Exit.
Note Note
When you change the compatibility to Basic(for VoIP), the ECM feature is only available for colour fax sending.