In the past, Ajax has experienced several phone outages, one of which lasted over seven hours when the company’s current PBX had a software crash. Telephone communications are critical, so Ajax would like to design the IP telephony solution to be scalable and highly available.

Which four parameters must be considered when selecting the hardware platform for a Cisco Unified Communications Manager implementation? (Choose four.)

A.
theMoH transport mechanism

B.
whether or not the phones are secured

C.
the number of partitions in the dial plan

D.
the number of devices the cluster will support

E.
the number of calling search spaces in the dial plan

F.
the number of clusters in the company’s phone system

G.
the type of Call Admission Control the cluster will support