I am running Unity 7.0(2) configured as Unified Messaging with Windows 2003/Exchange 2003 backend. I have a large number of users that are in a voicemail-only configuration in this domain as well...Unity alias does not match their Exchange/Outlook alias. Now we need to migrate the Unity properties over to their actual domain account and get rid of their old voicemail-only accounts.
It looks like I can do a COBRAS backup of these users and then do a restore and individually select their new destination alias. I would assume that we would need to delete the users (bulk subscriber delete) before the restore process since Unity cannot restore the same extension to 2 different aliases. I used the Migrate Subscriber Data tool in the past to do this sequence of tasks, but I have thousands of users to migrate and COBRAS seems to be the better tool for this.
Is COBRAS the right tool? Is there a way to do this with a CSV file on the restore instead of manually selecting each user and pointing them to their new destination alias?
Any other gotchas that I missed here?