You have an Exchange Server organization that contains five servers. The servers are configured as shown in
the following table.

You need to create a Lync Server SIP Unified Messaging (UM) dial plan to enable voice integration between
Lync Server and Exchange Server.
Which three Exchange servers should you associate to the UM dial plans? (Each correct answer presents part
of the solution. Choose three.)

A.
EX1

B.
EX2

C.
EX3

D.
EX4

E.
EX5

Explanation:
C: You can enable Unified Messaging (UM) in Microsoft Exchange Server 2010. You must enable theExchange computer running the Unified Messaging server role before the Unified Messaging server can
process calls for UM-enabled Exchange 2010 recipients in your Exchange organization. However, the Unified
Messaging server also must be added to a UM dial plan before it can process calls for Unified Messaging.
D, E:
* Requirements and Recommendations
Client Access and Mailbox. In Microsoft Exchange Server 2013, Exchange UM runs as a service on these
servers.
* Deploy the Exchange Mailbox server roles in each Exchange Unified Messaging (UM) forest where you want
to enable users for Exchange UM.
Configuring Unified Messaging on Microsoft Exchange Server to Work with Lync Server 2013