Case J: Shared voice/fax line with computer modem and answering machine
If you receive both voice calls and fax calls at the same phone number, and you also
have a computer modem and answering machine connected on this phone line, set
up your HP All-in-One as described in this section.
Since your computer modem shares the phone line with your HP All-in-One, you will
not be able to use both your computer modem and your HP All-in-One
simultaneously. For example, you cannot use your HP All-in-One for faxing if you are
using your computer modem to send an e-mail or access the Internet.
There are two different ways to set up your HP All-in-One 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 ports.
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 2-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.) For additional details, see the
section in the onscreen
HP Image Zone Help
Example of a parallel splitter
If your computer has two phone ports, set up your HP All-in-One as described
HP Officejet 5600 All-in-One series
Back view of the HP All-in-One
1 Telephone wall jack
2 "IN" phone port on your computer
3 "OUT" phone port on your computer
4 Telephone (optional)
5 Answering machine
6 Computer with modem
7 Phone cord supplied in the box with your HP All-in-One connected to the "1-LINE" port
To set up your HP All-in-One to a computer with two phone ports
Remove the white plug from the port labeled "2-EXT" on the back of your HP All-
Find the phone cord that connects from the back of your computer (your
computer 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 your
Unplug your answering machine from the telephone wall jack, and connect it to
the "OUT" port on the back of your computer modem.
This allows a direct connection between the HP All-in-One and your answering
machine, even though the computer modem is connected first in line.
If you do not connect your answering machine in this way, fax
tones from a sending fax machine might be recorded on your answering
machine, and you might not be able to receive faxes with your HP All-in-
Using the phone cord supplied in the box with your HP All-in-One, connect one
end to your telephone wall jack, then connect the other end to the port labeled "1-
LINE" on the back of your HP All-in-One.
If you do not use the supplied cord to connect from the telephone
wall jack to your HP All-in-One, 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. If the supplied phone cord is too
The phone cord that came with my HP All-in-One is not long
for information on extending it.
(Optional) If your answering machine does not have a built-in phone, for
convenience you might want to connect a phone to the back of your answering
machine at the "OUT" port.
If your answering machine does not let you connect an external
phone, you can purchase and use a parallel splitter (also known as a
coupler) to connect both the answering machine and telephone to your
HP All-in-One. You can use standard phone cords for these connections.
If your computer modem software is set to receive faxes to your computer
automatically, turn off that setting.
If you do not turn off the automatic fax reception setting in your
computer modem software, your HP All-in-One will not be able to receive
For information on changing this setting, see
Set the answer mode
Set your answering machine to answer after four or fewer rings.
Rings to Answer
setting on your HP All-in-One to the maximum
number of rings supported by your device. (The maximum number of rings varies
For information on changing this setting, see
Set the number of rings before
10. Run a fax test. For information, see
Test your fax setup
When the phone rings, your answering machine will answer after the number of rings
you have set, and then play your recorded greeting. The HP All-in-One monitors the
call during this time, "listening" for fax tones. If incoming fax tones are detected, the
HP All-in-One will emit fax reception tones and receive the fax; if there are no fax
tones, the HP All-in-One stops monitoring the line and your answering machine can
record a voice message.