AT&T System 25 - Manual (Page 34)

Night Service
❑
When you leave for the night, the system can be set so that
incoming calls either ring a night bell or are directed to
preassigned telephones.
Activating Night Service
1 Press
NIGHT
to turn on Night Service.
The light next to this button turns on.
To turn off this feature:
2 Press
NIGHT
to turn this feature off.
The light next to this button goes off.
Display
Turning Night Service on or off does not affect the display.
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