A call is forwarded from the UM IP gateway to Exchange Server 2013, and reaches the UM call router.
What is the next step before the voice mail reaches the user mailbox?
A. The UM call router establishes an audio connection with the IP gateway.
B. The UM call router proxies the connection to a Mailbox Server.
C. The UM call router always redirects the call to the UM service on the same server, regardless of where the Mailbox is located.
D. The UM call router redirects the inbound call to the UM service on the server where the Mailbox is located.
