A Cisco Unified Communications Manager cluster contains a publisher and four subscriber nodes.
If the publisher becomes unavailable, which three of these statements are true? (Choose three.)

A.
All on-net calls are dropped.

B.
The Informix database automatically locks.

C.
All IP telephony devices continue to operate.

D.
New Cisco Unified Communications Manager devices can be configureD.

E.
Available Cisco Unified Communications Manager servers work from the local backup
database.

F.
The Informix database will save configuration changes on subscribers to be uploaded to the
publisher when available.