NEC univerge sv8100 User Manual page 214

Issue 7.00
4.
The message numbers correspond to the same message number when accessed via
the telephone. Message 1 is the first message, message 2 is the second message,
etc.
5.
2 - 206
Choose the extension number to be changed, and make sure Audio Data is set
to Incoming Messages.
To delete a message:
click on the red X icon to the right of the appropriate message.
Features