To manage the UM server role, you need to make sure you understand the tools available and how to troubleshoot UM.
For most people, enabling a mailbox for UM might seem straightforward, but it is not done in the properties of the mailbox on the Mailbox Features tab, but using Enable Unified Messaging in the Actions pane in the EMC as seen in Figure 9-8 or by using the Set-Mailbox cmdlet.
Figure 9-8. Enabling Unified Messaging for a mailbox
When you enable a user account for UM, you must specify a UM mailbox policy and an extension, and you must assign a PIN or configure the system to ...