Brother MFC-J491DW, Online User'S Manual

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Home > Troubleshooting > If You Are Having Difficulty with Your Machine > Telephone and Fax
Problems > Telephone Line Interference/VoIP
Telephone Line Interference/VoIP
If you are having problems sending or receiving a fax due to possible interference on the telephone line or if you
are using a VoIP system, we recommend changing the modem speed to minimize errors in fax operations.
>> MFC-J491DW/MFC-J497DW
>> MFC-J690DW/MFC-J895DW
MFC-J491DW/MFC-J497DW
1. Press Settings .
2. Press
a
or
b
to select the following:
a. Select
[Initial Setup]
. Press OK .
b. Select
[Compatibility]
. Press OK .
c. Select
[Normal]
or
[Basic(for VoIP)]
. Press OK .
•
[Basic(for VoIP)]
reduces the modem speed to 9,600 bps and turns off color fax receiving and
Error Correction Mode (ECM), except for color fax-sending. 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)]
.
•
[Normal]
sets the modem speed at 14,400 bps.
3. Press Stop/Exit .
• VoIP (Voice over IP) is a type of phone system that uses an Internet connection, rather than a traditional
phone line.
MFC-J690DW/MFC-J895DW
1. Press
[Settings]
>
[All Settings]
>
[Initial Setup]
>
[Compatibility]
.
2. Press the option you want.
•
[Basic(for VoIP)]
reduces the modem speed to 9,600 bps and turns off color fax receiving and Error
Correction Mode (ECM), except for color fax-sending. 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)]
.
•
[Normal]
sets the modem speed at 14,400 bps.
3. Press .
• VoIP (Voice over IP) is a type of phone system that uses an Internet connection, rather than a traditional
phone line.
Related Information
• Telephone and Fax Problems
• Voice Over Internet Protocol (VoIP/Telephone Line Interference)
• Error and Maintenance Messages
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