
Quick reference guide
Press to scroll up, 
down, left or right 
while in menus.
ENTER
Press to display a menu, 
select a displayed item 
from the menu, or save 
an entry.
Quick reference guide
NEW CALL LINE 1, LINE 2
Indicates new calls 
and/or voice messages 
for line 1 and line 2.
HOLD
Press to place a call 
on hold.
CALL HISTORY
Press to display caller 
ID information.
DIR
Press to store or 
display directory 
entries.
(AUTO) REDIAL
Press to activate 
auto-redial.
REMOVE
Press to delete the 
displayed directory or 
caller ID entry.
Dial pad keys
Press to start a quick 
name search while in 
the directory. 
LOWER 
Press to dial the 
telephone number 
stored in the lower 
locations of the onetouch keys.
LINE 1, LINE 2
Press, then lift 
handset to make or 
answer a call on line 
1 or 2. 
CONFERENCE
Press to enter a threeway conference call.
FLASH
During a call, press to 
receive an incoming 
call if call waiting is 
activated.
PAUSE
Press to insert a pause 
in the dialing sequence 
of a number stored in 
the memory.
SPEAKER 
Press to turn the base 
speakerphone on or off.
MUTE 
Press to silence the 
microphone; press 
again to resume 
the telephone 
conversation.
HEADSET 
Press to activate the 
headset.
  VOLUME
During a call, press 
to adjust the listening 
volume. 
While the telephone 
is not in use, press to 
adjust ringer volume.
Quick start guide
993 
Two-line speakerphone with 
caller ID/call waiting
www.telephones.att.com
For customer service or product information, 
visit our website at www.telephones.att.com 
or call 1 (800) 222-3111. In Canada, dial 1 (866) 288-4268.
© 2008-2009 Advanced American Telephones. All Rights Reserved. 
AT&T and the AT&T logo are trademarks of AT&T Intellectual Property licensed to 
 Advanced American Telephones, San Antonio, TX 78219. 
Printed in China. Issue 7 AT&T 09/09

Telephone installation
Telephone installation
Telephone installation
Menu operation
Attach the mounting bracket.
1.
If the mounting bracket is not already attached, slide the tabs into the 
holes as shown. Snap the mounting bracket onto the base.
Connect the telephone line cord(s) to the telephone and the modular 
2. 
wall jack(s). 
If there is a single two-line modular wall jack, use only the black 
telephone line cord (4-conductor). Plug one end into the jack labeled  
L1 or L1/L2 on the back of the telephone. Plug the other end into the 
wall jack. Make sure the telephone line cord snaps firmly into place at both 
ends.
Two-line modular 
wall jack
Black telephone line 
cord (4-conductor)
If there are two one-line wall jacks, use both telephone line cords. Insert 
one end of the clear telephone line cord into the jack labeled L1 or L1/L2 
on the back of the telephone. Plug the other end into the modular wall jack 
for Line 1. Insert one end of the black telephone line cord into the jack on 
the back of the telephone labeled L2. Then, plug the other end into the 
modular wall jack for Line 2. Make sure the telephone line cords snap firmly 
into place at both ends.
Modular 
wall jack 
for Line 1
Clear telephone 
line cord 
Connect the handset to the telephone.
3.
Plug the coiled handset cord into the handset jack on the left side of the 
telephone. Plug the other end of the coiled handset cord into the handset, 
then hang up.
Modular wall 
jack for Line 2
Black telephone line 
cord (4-conductor) 
Connect the power adapter.
4.
Thread the power adapter cord behind the slot at the back of the 
telephone base. Then plug the smaller end of the power adapter into the 
jack labeled 9V AC POWER on the back of the telephone. Plug the power 
adapter into a standard electrical outlet not controlled by a wall switch.
Electrical outlet not controlled 
by a wall switch.
Power adapter
POWER jack
slot
Check for a dial tone.
5.
Press LINE 1, then lift the handset or press SPEAKER and listen for a dial 
tone. Then press LINE 2 and listen for a dial tone. 
Confirm Lines 1 and 2.
6.
Press LINE 1 and dial one of the telephone numbers. If there is a busy 
signal, line 1 is the number you called. If line 2 rings, line 2 is the number 
you called.
Menu topic or data
 FEATURE SETUP
 ONE TOUCH     
Menu scroll 
Menu item
indicator
Menu
 PHONE SETTINGS 
  LINE 1
 PRIMARY LINE   
Feature
Current Setting
Feature setup, memory programming and a few individual 
feature operations for the 993 use the menus shown in 
the screen display. Use the navigation buttons ( ,  , 
 ,  , ENTER) to begin, end and move through menu 
operations (for example, FEATURE SETUP).
Press ENTER to activate a menu operation. The first 
1. 
menu item for this topic or data will appear in line four 
of the screen. 
When  is displayed on screen, press  or  
2. 
repeatedly to move through the menu.
Press ENTER to choose the menu item currently 
3. 
displayed. This may be a lower level menu, an action, 
or a feature settings screen. 
When   is displayed on screen, press  or  to scroll 
4. 
through setting options. 
Press  or ENTER to store the current setting 
5. 
and show the next option for the feature currently 
displayed. When you successfully change a setting, 
there is a high pitch tone to indicate confirmation. 
To return to the main menu, press  or  until the 
6. 
screen displays MAIN MENU and then press ENTER. 
To exit FEATURE SETUP, press and hold ENTER.
7.
NOTES: 
If you do not press a key to continue menu operations within 
1.
approximately 30 seconds, the telephone automatically exits the 
menu. 
If there is a low pitch (error) tone, repeat the steps to program the 
2.
feature.