You can modify FCOS settings to control how mailbox owners can set their passcodes, including:
Allow mailbox owners to change their passcodes
Prevent the use of trivial passcodes
Lock the owner out of the mailbox when there are too many invalid passcode entries.
To configure passcode parameters:
Customize an FCOS to include feature bit 70 (User Options Menu) and the following bits as applicable:
73 (enter and change mailbox passcode)
81 (only require one correct passcode for login)
93 (deny change of passcode in first tutorial)
130 (passcode cannot be same as mailbox)
132 (bad passcode lockout if over limit)
201 (deny trivial passcode)
218 (passcode not needed on direct calls)
Assign the FCOS containing these bits to each mailbox that requires these passcode settings.