Suppose that you wanted to allow your users to play back voice mail through Outlook Voice Access 2007, but that you didn’t want them to have access to their e-mail. That was the question I recently got from someone who was replacing their old Avaya system, in part because they didn’t want people to get their e-mail over the phone.
(To me this is sad; I depend heavily on that feature, but different strokes and all that.)
The trick is to use the -TUIAccessToEmailEnabled flag to Set-UMMailbox (“TUI” stands for “telephone user interface”, in case you were curious.) A little of this:
Get-Mailbox | Set-UMMailbox -TUIAccessToEmailEnabled:$false
and you’re done! There are also separate parameters that control TUI access to the calendar and contacts folders.
Exchange 2010 improves on this in a couple of ways.
First, instead of applying the fix to individual users, you can apply it at the UM mailbox policy level. Poof! Instant consistency.
Second, you can control user access to their personal contacts and the organization’s GAL separately. Where Exchange 2007 lumps both together with TUIAccessToAddressBookEnabled, Exchange 2010 gives us AllowTUIAccessToPersonalContacts and AllowTUIAccessToDirectory.
There are lots of other improvements in Exchange 2010 UM, some of which I’ll be writing about in the not-too-distant future.