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INSTALLATION
1 Connect line cord(s) to telephone.
• If you have a two-line jack, use only the line
cord with the clear modular plugs on each
end. Plug one end into the jack labeled L1
OR L1/L2 on the back of the telephone.
• If you have two separate jacks, use both line
cords. Insert one end of the cord with the
blue plugs into the jack labeled L1 OR L1/L2
on the back of the telephone. Insert one end
of the cord with the clear plugs into the jack
labeled L2 on the back of the telephone.
2 Attach the base.
Turn the base so that the larger end of the base is
toward the top of the telephone. Attach the base
by inserting the tabs into the slots. Push down on
the large end of the base to lock it into place.
3 Connect the line cord(s) to your modular
jack(s).
• If you have a two-line jack, plug the
free end of the line cord into a modular
telephone jack. Make sure the cord snaps
firmly into place.
• If you have two separate jacks, plug the
free end of the cord with the blue plugs into
the modular jack for Line 1. Plug the free
end of the cord with the clear plugs into the
modular telephone jack for Line 2. Make sure
the cords snap firmly into place.
4 Connect handset to telephone.
5 Set Dial Mode.
This product comes set for touch tone dialing.
Make sure you choose the correct dialing method
(TONE or PULSE); dial pulse dialing will not work
if you have touch tone service.
To set for dial pulse (rotary) service, lift handset
and press L or l, then press P, #, #,
#, 3. To change back to touch tone service, press
P, #, #, #, 8.
To switch from pulse to tone dialing during a
phone call, see “Temporary Tone” under
TELEPHONE OPERATION.
6 Check for dial tone.
Press L, lift the handset, press K
or press h, and listen for a dial tone.
Then press l. If you cannot hear a dial tone,
turn to IN CASE OF DIFFICULTY.
7 Confirm Lines 1 and 2.
To determine which line is which, press L
and call one of your telephone numbers. If you
hear a busy signal, Line 1 is the number you called.
If Line 2 rings, it is the number you called.
Data Port
If you want to connect another device (such as a
modem or fax machine) to the wall jack, you can use
the jack on the phone labeled DATA L2. The data port
uses Line 2; a call picked up on Line 2 at another
extension may interrupt a fax, modem, or message
transmission.
Headset Jack
You can use this telephone hands-free
when you install any AT&T 2.5 mm
headset, purchased separately.
Plug the headset into the jack.
Do not force the connection,
but make sure the plug fits
securely.
Table/Desk
Telephone Line
Cord with blue
modular plugs
Telephone Line Cord with
clear modular plugs
Modular
Jack for
Line 1
Modular
Jack for
Line 2
Telephone Line
Cord with clear
modular plugs
Two-line
Modular
Jack