NEC i-Series Alphanumeric Display Feature Handbook page 54

DSS Console
Switching the Night
Service mode from
your DSS Console:
To activate DSS
Console Alternate
48
1. Press Night Service key (NIGHT, DAY,
BREAK or NITE 2).
If this key is lit . . . System in in the . . .
BREAK
1. Press ALT.
Answer:
enable Alternate Answer. Another user
has already enabled your console as
their Alternate Answer destination.
When the ALT Alternate Answer
key is . . .
Night Service BLF
NIGHT
DAY
NITE2
You hear a short confirmation tone.
If you hear a long tone, you cannot
Alternate Answer BLF
On
Off
Night Mode
Day Mode
Rest Mode
Midnight Mode
is . . .
Enabled
Disabled