Refer to the exhibit. Cisco Unified CallManager cluster A and Unity A use extension range 1000-
1650. Cisco Unified CallManager cluster B and Unity B use extension range 2000-2450. Cisco
Unified CallManager cluster C and Unity C use extension range 1500-1950. Your customer wants
to deploy Unified Messaging. Exchange stores are local at each site and part of the same
organization. Digital networking without using access codes is an absolute requirement.
Which statement is true?

A.
A unique dialing domain is created per Cisco Unity location. The other Cisco Unity locations are
automatically available at that time.

B.
All Cisco Unity servers are in the same dialing domain, and Cisco Unified CallManager cluster
C needs to change the extensions that overlap with Cisco Unified CallManager cluster A.

C.
Cisco Unity servers A and B are in the same dialing domain and Unity C is put into its own
dialing domain to address the extension conflicts with Unity A and B.

D.
All Cisco Unity servers are in different locations, but are part of the same dialing domain.