NEC Univerge SV8100 Quick Reference Manual - page 11
Accessing service codes . . .
720 to cancel all of the following features:
Call Forward, Message Waiting, DND, Alarm Clock.
Common Cancel
Code:
847 + 1 to block your outside calls
2 to block Paging, Intercom calls, Call
Forwards and transferred outside calls
3 to block all calls
4 to block Call Forwards
0 to cancel
Do Not Disturb:
848 + 1 + Extension for Immediate
842 + 1 + Extension for Dual Ring
843 + 1 + Extension for Busy
844 + 1 + Extension for Busy and No Answer
845 + 1 + Extension for No Answer
846 + 1 + Extension for Follow Me
You can replace Extension with the Voice Mail
master number to forward calls to your mail box.
Code + 0
Call Forward:
This will be either a personal DDI number or other
allocated number.
Upon answering the system will return a form of
dial tone to inform the Mobile Extension user to
continue dialling .
The required feature/service code can be dialled.
Dial Feature/Service
code:
Listen for tone:
Dial allocated number:
Quick Reference for Other Features
Cancel a Call Forward: