This is from the help file. http://ciscounitytools.com/HelpFiles/MSM/MSMConsoleHelp_ENU.htm#_Toc43179405
For scripts that move messages from a user’s Inbox, you may choose to have a voice message sent to all subscribers in the agent prior to the script taking effect. For other types of scripts, this section of the Script Properties dialog will be deactivated.
If you want to notify subscribers of scripts that will move messages from their inboxes, check the Notify Subscribers checkbox, and specify the number of days in advance you would like the message to be sent. Select a WAV file to include as the content of the message. This WAV file will be sent to every subscriber in the agent as a voice message prior to the script being run.
Please see the section Activating a Script for more information about User Warning tasks.
Note: You are responsible for recording the WAV file yourself. See the section Recording a New Voice Mail .WAV File for help recording WAV files.
Recording a New Voice Mail .WAV File http://ciscounitytools.com/HelpFiles/MSM/MSMConsoleHelp_ENU.htm#_Toc43179414
