I assume you mean the locout of the voice mail account from over the phone and not a lockout of the NT account when exeeding NT's login attempts... the later is not under our control.
The phone lockout time is controled under the "Account Policy" section in the SA - under the Phone Lockout Policies you indicate how many failed attempts to allow and how long to lock the account out if those attempts are exceeded. By default this is 60 minutes and as an administrator you can unlock the account right away by going to the Account page for that subscriber and clearing the "Cisco Unity accont status locked" flag.
We're just stuffing a timestamp in to that subscriber's SQL record that indicates the next time they'll be allowed to try and log in - once that time has passed they can dial in. There's no series of events (other than someone playing with the clock on the server) that would cause it to wait 12 hours unless you'd set the lockout time to that on the account policy page... or there shouldn't be anyway.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.