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If you use one of the following, setting the fax speed to a slower speed might be required:
• An Internet phone service
• A PBX system
• Fax over Internet Protocol (FoIP)
• An integrated services digital network (ISDN) service
If you experience problems sending and receiving faxes, try using a lower Fax Speed.
The following table provides the available fax speed settings.
Fax speed setting Fax speed
Fast v.34 (33600 baud)
Medium v.17 (14400 baud)
Slow v.29 (9600 baud)
To set the fax speed from the device control panel
1. Press Setup.
2. Press right arrow
to select Fax Settings, and then press OK.
3. Press right arrow
to select Fax Speed, and then press OK.
4. Select an option using the arrow keys, and then press OK.
Set the fax sound volume
Use this procedure to increase or decrease the volume of the fax sounds.
To set the fax sound volume via the device control panel
▲ Press Setup, select Fax Sound Volume, and then use the arrow keys to increase or
decrease the volume. Press OK to select the volume.
Fax over Internet Protocol (FoIP)
You may subscribe to a low cost phone service that allows you to send and receive faxes
with your device by using the Internet. This method is called Fax over Internet Protocol
(FoIP). You probably use a FoIP service (provided by your telephone company) if you:
• Dial a special access code along with the fax number, or
• Have an IP converter box that connects to the Internet and provides analog phone
ports for the fax connection.
NOTE: You can only send and receive faxes by connecting a phone cord to the port
labeled "1-LINE" on the device. This means that your connection to the Internet must
be done either through a converter box (which supplies regular analog phone jacks
for fax connections) or your telephone company.
Some Internet faxing services do not work properly when the device is sending and
receiving faxes at high speed (33600 bps) or when sending color faxes. If you experience
problems sending and receiving faxes while using an Internet fax service, use a slower
fax speed and only send black-and-white faxes. You can do this by using a lower Fax
Speed setting. For information on changing this setting, see
Set the fax speed.
Fax over Internet Protocol (FoIP) 55