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Display screen messages
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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.
COVM The telephone is ready to receive a voice mail 
signal from your local telephone company.
COVM 
1 2 3 4
There are new voice mail messages.
DND The Do Not Disturb mode is on.
DTAD: XX/YY Flashes when the mailboxes of the DTAD mailbox 
1080 t
elephone ar
e 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 1070 
telephone. YY is the total number of all system 
extension messages recorded for this 1070 
telephone.)
(EMPTY) The directory or one-touch location is empty.
EXT XX RING There is an incoming Centrex call.
FULL! The directory is full.
INITIALIZING. .   The telephone is warming up after having its 
power connected.
INTERCOM FROM XX The telephone is receiving a call from extension 
XX (XX is the extension number).
(LIST EMPTY) The redial memory is empty.
LOW BATT There is no spare battery in the telephone or the 
battery power is low.
LOWER The [LOWER] key is pressed to access and dial 
the number stored in the lower section of a one-
touch key.