I have a customer who has a 3300 v4.2 who has been getting a lot of VM toll fraud lately, hackers are getting into mailboxes and changing the operator extension to various 011 or out of country area code numbers. Besides restricting the COR of the VM extensions and the COR of the trunks (for Trunk-Trunk transfer) they want to change the VM passcode length in the embedded VM. What I am wondering, is if we go into the VM and change the System Passcode length, how is it handled to the users? Are all mailboxes returned to the default passcode or the next time the user logs in are they forced to change their passcoode to one that conforms with the new length, or what, and how is the admin/operator mailboxes affected, we already changed all levels of passcodes on those mailboxes from the default?