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Set Telephone Line
Compatibility for
Interference and VoIP
Systems
Related Models:
MFC-L2680W/MFC-L2700DW/MFC-L2705DW
Problems sending and receiving faxes due to
possible interference on the telephone line
may be solved by lowering the modem speed
to minimize errors in fax transmission. If you
are using a Voice over IP (VoIP) service,
Brother recommends changing the
compatibility to Basic (for VoIP).
• VoIP is a type of phone system that
uses an Internet connection, rather
than a traditional phone line.
1
Press Menu.
2
Press a or b to display the Fax option,
and then press OK.
3
Press a or b to display the
Miscellaneous option, and then press
OK.
4
Press a or b to display the
Compatibility option, and then press
OK.
5
Press a or b to display the High,
Normal, or Basic (for VoIP)
option, and then press OK.
Option Description
High
Select High to set the
modem speed at 33600
bps.
Normal
Select Normal to set the
modem speed at 14400
bps.
Option Description
Basic
(for
VoIP)
Select Basic (for
VoIP) to reduce the
modem speed to 9600 bps
and turn off Error
Correction Mode (ECM).
Unless interference is a
recurring problem on your
telephone line, you may
prefer to use it only when
needed.
To improve compatibility
with most VoIP services,
Brother recommends
changing the compatibility
setting to Basic (for
VoIP).
6
Press Stop/Exit.
• Fax and Telephone Problems on page 51
Related Information
Receive Modes
Related Models:
MFC-L2680W/MFC-L2700DW/MFC-L2705DW
Some receive modes answer automatically
(Fax Only Mode and Fax/Tel Mode). You may
want to change the Ring Delay before using
these modes.
Fax Only Mode
(Fax or Fax only in the Machine's Menu)
Fax Only Mode automatically answers
every call as a fax.
Fax/Tel Mode
(Fax/Tel in the Machine's Menu)
Fax/Tel Mode helps you manage incoming
calls, by recognizing whether they are fax
or voice calls and handling them in one of
the following ways:
• Faxes will be received automatically.
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