
N
4.2
DPT Features
68
Night Service
This system supports both the Night and Day modes of operation. The system
operation for originating and receiving calls can be different in night and day modes.
Toll restriction calls can be programmed to prevent unauthorized toll calls at night.
Day/Night mode can be switched manually at anytime desired. If your extension is assigned
as an operator, you can perform the operation using the display.
Manual Night Service
1. Lift the handset or press the SP-PHONE/MONITOR button.
2. Dial the feature number (78).
3. Dial 0 or 1.
- 0 : from Night mode to Day mode
- 1 : from Day mode to Night mode
• You hear a confirmation tone.
• The display shows:
or
4. Hang up or press the SP-PHONE/MONITOR button.
Confirming the current mode (with a display PT only)
When the telephone is idle;
1. Press #.
• The display shows the current mode for 3 seconds.
Night Button Operation
To set/cancel the night mode;
1. Lift the handset or press the SP-PHONE/MONITOR button.
2. Press the Night button.
- To set : The Night button indicator light turns on.
- To cancel : The Night button indicator light turns off.
Night Mode
Day Mode
1
0
1
2
4
7
8
1
2
3
1
or
DPT (72**)
30
✔
20
✔
35
✔
50
✔