Exhibit:

This network diagram represents a Cisco CallManager Express integration with Cisco CallManager. Which three principles apply to this design? (Choose three.)

A.
You must use Cisco CallManager 3.3(3) or greater.

B.
Cisco CallManager does not support H.450 protocols.

C.
Connection to the Cisco CallManager is through the H.323 protocol.

D.
Cisco CallManager does not support QSIG protocols.

E.
Cisco CallManager Express supports only H.450(1) through H.450(5).

F.
You must use Cisco CallManager 4.1 or greater.