Panasonic KX-NS1000 User Manual page 44

3-8 Message Waiting Notification (3)
Other subscriber‟s Messages
A subscriber can check whether messages are left to the other subscribers on his/her
phone (FF button).
For example, this button is useful when the secretary checks the message for the boss.
Setup -> PBX Configuration -> 4.1.4 Flexible Button
1. Select "Message Waiting"
2. Specify an extension number
as Type. for which messages are checked.