Switchable Data Port; Headset Jack - AT&T 992 User Manual

0992_CIB_1ATT_FINAL_022105 2/22/04
Wall Installation
continued from page 9
5.
Connect the telephone line cord(s) to the telephone and
the modular wall jack(s).
• If there is a single two-line wall jack, use only the short
line cord. Plug one end into the jack labeled L1 OR L1/L2
on the back of the telephone. Place the cord in the channel
under the telephone as shown. Plug the other end into the
wall jack. Make sure the cord snaps firmly into place. Then,
place the telephone on the wall jack mounting studs and pull
down until it is held securely.
• If there are two separate one-line wall jacks, use two
line cords (the short cord and one of the long cords). Plug one
end of the short cord into the jack labeled L1 OR L1/L2 on
the back of the telephone. Plug one end of the black long telephone
cord into the jack labeled L2 on the back of the telephone. Place the
cords in the channels under the telephone as shown. Plug the free end
of the telephone line cord for Line 1 into the Line 1 wall jack. Plug the
free end of the telephone line cord for Line 2 into the Line 2 wall jack.
Make sure the cords snap firmly into place at both ends. Then, place
the telephone on the Line 1 wall jack mounting studs and pull until
it is held securely.
10
4:46 PM Page 10
Two-line
modular
wall jack
Modular
wall jack
for Line 1
Modular
wall jack
for Line 2
6.
Plug the power adapter into an AC outlet not controlled by
a wall switch.
7.
Follow Steps 5 and 6 in Table/Desk Installation on page 8.

Switchable Data Port

If you want to connect another device (such as a modem or fax machine)
to the wall jack, use the jack labeled DATA on the telephone. You
can set the data port to use Line 1 or 2. Set the DATA SELECT switch
located on the back of the telephone to L1 or L2. A call picked up at another
extension on the line used by the data port may interrupt fax, modem or
message transmission.
Data port

Headset Jack

NOTE: A 9V alkaline battery MUST be installed for the headset to work
correctly in all conditions.
You can use this telephone hands-free when any AT&T two-band
2.5 mm headset, or other compatible, electronically isolated headset is installed.
Headsets must be purchased separately and are available from Customer
For best results, use an AT&T two-band
1 (800) 222-3111.
Service at
2.5 mm headset.
Make sure the headset is firmly plugged into the headset jack under the
rubber flap on the right side of the telephone. There is an error tone if
you press h when the headset is not plugged in.
DATA SELECT
switch
11