To activate Night Service by dialing codes:
1.At a Multiline Terminal, press Speaker key.
- OR-
At the Single Line Terminal, lift the handset.
2.Dial 718. To change a different group’s mode, dial 718 + the group number (01~04). 3.Dial the Night Service Code: 1 = Day 1 Mode 2 = Night 1 Mode 3 = Midnight 1 Mode 4 = Rest 1 Mode 5 = Day 2 Mode 6 = Night 2 Mode 7 = Midnight 2 Mode 8 = Rest 2 Mode 4.Press Speaker key or hang up.