Case K: Shared voice/fax line with computer dial-up modem and voice mail
If you receive both voice calls and fax calls at the same phone number, use a computer dial-up
modem on the same phone line, and subscribe to a voice mail service through your telephone
company, set up the device as described in this section.
NOTE: You cannot receive faxes automatically if you have a voice mail service at the same
phone number you use for fax calls. You must receive faxes manually; this means you must be
available to respond in person to incoming fax calls. If you want to receive faxes automatically
instead, contact your telephone company to subscribe to a distinctive ring service, or to obtain
a separate phone line for faxing.
Additional fax setup
Since your computer dial-up modem shares the phone line with the device, you cannot use both
your modem and the device simultaneously. For example, you cannot use the device for faxing if
you are using your computer dial-up modem to send an e-mail or access the Internet.
There are two different ways to set up the device with your computer based on the number of phone
ports on your computer. Before you begin, check your computer to see if it has one or two phone
If your computer has only one phone port, you will need to purchase a parallel splitter (also called
a coupler), as shown below. (A parallel splitter has one RJ-11 port on the front and two RJ-11
ports on the back. Do not use a two-line phone splitter, a serial splitter, or a parallel splitter which
has two RJ-11 ports on the front and a plug on the back.)
Example of a parallel splitter
If your computer has two phone ports, set up the device as described below.
Back view of the device
Telephone wall jack
Use the phone cord supplied in the box with the device to connect to the
You might need to connect the supplied phone cord to the adapter
provided for your country/region.
Computer with modem
To set up the device on the same phone line as a computer with two phone ports
1. Remove the white plug from the port labeled 2-EXT on the back of the device.
2. Find the phone cord that connects from the back of your computer (your computer dial-up
modem) to a telephone wall jack. Disconnect the cord from the telephone wall jack and plug it
into the port labeled 2-EXT on the back of the device.
3. Connect a phone to the "OUT" port on the back of your computer dial-up modem.
Set up faxing (parallel phone systems)
4. Using the phone cord supplied in the box with the device, connect one end to your telephone
wall jack, then connect the other end to the port labeled 1-LINE on the back of the device.
NOTE: You might need to connect the supplied phone cord to the adapter provided for
If you do not use the supplied cord to connect from the telephone wall jack to the device,
you might not be able to fax successfully. This special phone cord is different from the phone
cords you might already have in your home or office.
5. If your modem software is set to receive faxes to your computer automatically, turn off that
NOTE: If you do not turn off the automatic fax reception setting in your modem software,
the device will not be able to receive faxes.
6. Turn off the Auto Answer setting.
7. Run a fax test.
You must be available to respond in person to incoming fax calls, or the device cannot receive faxes.
If you encounter problems setting up the device with optional equipment, contact your local service
provider or vendor for further assistance.