Which three of these options correctly describe the role of a subscriber in a Cisco CallManager cluster? (Choose three)
A.
Collects CDRs
B.
Replicates database to other Cisco CallManager servers
C.
Maintains read-only copies of the configuration database
D.
Maintains writeable copy of the configuration database
E.
Processes IP telephony calls
F.
Can have only one in a Cisco CallManager cluster