NEC UNIVERGE SV9100 Features And Specifications page 123

Ring the extension
number
Operation
None
2
PRG 14-01-27: 1
And refuse mode is? Off
On
Reason of No
Caller ID?
Anything Else
Private
PRG 22-18-01
2
0
Play VRS Message
PRG 40-10-07
Disconnect the call
123
Ring the incoming
ring group
Follow PRG 22-02-01