
Getting started
Display screen messages
SPECIAL OPTIONS
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LCD CONTRAST
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 screen contrast level 
5. To move to the next feature, press [
].
To exit setup, press and hold [ENTER].
AC FAIL | There is no AC power to the set. If a good battery  | |
is installed, basic phone operation is supported,  | ||
  | ||
  | (such as making and answering calls on the  | |
  | handset.) Speakerphone, headset and call privacy  | |
  | are not supported. The handset volume will be at  | |
  | the minimum level and only the two lowest levels  | |
  | will be available for the ringer volume.  | |
  | 
  | |
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   | |
  | 
  | |
EXT XX RING  | There is an incoming Centrex call.  | |
  | continued on next page  |