AT&T 1040 - Display Screen Messages; Screen Contrast Adjustment; System Status Messages

4
Getting started
Display screen messages
Continued on next page
LCD CONTRAST
Your set's display provides important information.
You can adjust the screen contrast to one of eight
levels to optimize readability in different lighting
conditions.
1. Press
[ENTER].
2. Press
[ ] or [ ] until you see SPECIAL OPTIONS.
Press [ENTER].
3. Press
[ ] or [ ] until you see LCD CONTRAST.
4. Press
[ ] or [ ] to select the appropriate
screen contrast level (1-8).
5.
To move to the next feature, press [ ].
-OR-
To exit setup,
press and hold [ENTER].
SPECIAL OPTIONS
LEVEL-4
LCD CONTRAST
AC FAIL There is no AC power to the set. If a good
battery is installed, basic phone operation (such
as making and answering calls on the handset)
is supported. Speakerphone, headset and call
privacy are not supported. The handset volume
will be at the minimum level and only the
two lowest levels of the ringer volume will be
available.
DND The Do Not Disturb mode is on.
DTAD: XX/YY Flashes when the mailboxes of the DTAD
mailbox 1080 telephone are full or when the
auto attendant of the DTAD mailbox 1080
telephone is off. (XX is the total number of new
system extension messages recorded for this
1040 telephone. YY is the total number of all
system extension messages recorded for this
1040 telephone.)
(EMPTY) The one-touch location is empty.
EXT XX RING There is an incoming Centrex call.