Actually, Unity doesn't care if you change the alias on a mail user in Exchange here... it uses the ObjectId of the mail user as it's unique identifier (LDAP looking string that includes the container name and all that good stuff) and this can never change once a mailbox is created.
What you're seeing is when you change the alias and then go look in the SA before Unity has had a chance to sync with the directory. By default every 10 minutes or so Unity updates itself with changes made in the Exchange 5.5 directory (this is done differently in 3.x) and if you go to load a page of a subscriber who's alias has changed, you'll get the "this user has been deleted" page. If you wait a few minutes or manually kick of a sync using DOHPropTest then you'll see the updated alias for that subscriber reflected in the SA.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...