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Home > Troubleshooting > Telephone and Fax Problems
Telephone and Fax Problems
Related Models: MFC-L3740CDW/MFC-L3740CDWE/MFC-L3760CDW/MFC-L8340CDW/MFC-L8390CDW
Telephone Line or Connections
Difficulties
Suggestions
Dialling does not work.
(No dial tone)
Check all line cord connections. Make sure the telephone line cord is plugged into the
telephone wall socket and the LINE socket of the machine. If you subscribe to DSL or
VoIP services, contact your service provider for connection instructions.
(Available only for some countries.)
Change the Tone/Pulse setting.
If an external phone is connected to the machine, send a manual fax by lifting the handset
of the external telephone and dialling the number using the external telephone. Wait to
hear the fax receiving tones before sending a fax.
If there is no dial tone, connect a known working telephone and telephone line cord to the
socket. Then lift the external telephone’s handset and listen for a dial tone. If there is still
no dial tone, ask your telephone company to check the line and/or wall socket.
The machine does not
answer when called.
Make sure the machine is in the correct receive mode for your setup.
Check for a dial tone. If possible, call your machine to hear it answer. If there is still no
answer, check that the telephone line cord is plugged into the telephone wall socket and
the LINE socket of the machine. If there is no ringing when you call your machine, ask
your telephone company to check the line.
Handling Incoming Calls
Difficulties
Suggestions
Sending a Fax
Call to the
machine.
If you answered on an extension or external telephone, press your Remote Activation Code (the
factory setting is *51). If you answered on the external telephone, press the Start button to
receive the fax.
When your machine answers, hang up.
Custom features
on a single line.
If you have Call Waiting, Voice Mail, an answering machine, an alarm system or other custom
feature on a single telephone line with your machine, it may create a problem sending or
receiving faxes.
For Example: If you subscribe to Call Waiting or some other custom service and its signal comes
through the line while your machine is sending or receiving a fax, the signal can temporarily
interrupt or disrupt the faxes. Brother’s ECM (Error Correction Mode) feature should help
overcome this problem. This condition is related to the telephone system industry and is common
to all devices that send and receive information on a single, shared line with custom features. If
avoiding a slight interruption is crucial to your business, we recommend using a separate
telephone line with no custom features.
Receiving Faxes
Difficulties
Suggestions
Cannot receive
a fax.
Check all line cord connections. Make sure the telephone line cord is plugged into the telephone
wall socket and the LINE socket of the machine. If you subscribe to DSL or VoIP services, contact
your service provider for connection instructions. If you are using a VoIP system, try changing the
VoIP setting to Basic (for VoIP). This will lower modem speed and turn off Error Correction Mode
(ECM).
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