Shared voice/fax with computer dial-up modem
If you use your phone line for both fax and telephone calls, use these instructions to set up your fax.
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
NOTE: 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
To set up the product on the same phone line as a computer with two phone ports
Back view of the product
Additional fax setup
Telephone wall jack
Use the phone cord supplied in the box with the device to connect to the 1-
You might need to connect the supplied phone cord to the adapter provided
for your country/region.
Computer with modem
1. Remove the white plug from the port labeled 2-EXT on the back of the product.
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 product.
3. Connect a phone to the "OUT" port on the back of your computer dial-up modem.
4. Using the phone cord supplied in the box with the product, connect one end to your telephone
wall jack, then connect the other end to the port labeled 1-LINE on the back of the product.
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 HP product will not be able to receive faxes.
6. Now you need to decide how you want the product to answer calls, automatically or manually:
If you set up the product to answer calls automatically, it answers all incoming calls and
receives faxes. The HP All-in-One will not be able to distinguish between fax and voice calls
in this case; if you suspect the call is a voice call, you will need to answer it before the product
answers the call. To set up the product to answer calls automatically, turn on the Auto
If you set up the product to answer faxes manually, you must be available to respond in
person to incoming fax calls or the product cannot receive faxes. To set up the product to
answer calls manually, turn off the Auto Answersetting.
7. Run a fax test.
If you pick up the phone before the device answers the call and hear fax tones from a sending fax
machine, you will need to answer the fax call manually.
If you use your phone line for voice, fax, and your computer dial-up modem, follow these directions
to set up your fax.
If you encounter problems setting up the device with optional equipment, contact your local service
provider or vendor for further assistance.
Set up faxing (parallel phone systems)