Brother MFC 990cw - Manual (Page 153)

Troubleshooting and Routine Maintenance
141
B
Dial Tone detection
B
When you send a fax automatically, by
default your machine will wait for a fixed
amount of time before it starts to dial the
number. By changing the Dial Tone setting to
Detection you can make your machine dial
as soon as it detects a dial tone. This setting
can save a small amount of time when
sending a fax to many different numbers. If
you change the setting and start having
problems with dialling you should change
back to the factory No Detection setting.
a
Press MENU.
b
Press a or b to display
Initial Setup.
c
Press Initial Setup.
d
Press a or b to display Dial Tone.
e
Press Dial Tone.
f
Press Detection or No Detection.
g
Press Stop/Exit.
Telephone line interference
B
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 minimise errors.
a
Press MENU.
b
Press a or b to display Fax.
c
Press Fax.
d
Press a or b to display
Miscellaneous.
e
Press Miscellaneous.
f
Press a or b to display
Compatibility.
g
Press Compatibility.
h
Press 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)
i
Press Stop/Exit.
Note
When you change the compatibility to
Basic(for VoIP), the ECM feature is
only available for colour fax sending.