Which two statements about how PBX architectures compare to Cisco Unified Communications are true? (Choose two.)
A. A PBX architecture offers advanced, integrated applications such as presence and integrated video.
B. Cisco Unified Communications offers advanced, integrated applications such as presence and integrated video.
C. Cisco Unified Communications provides historical reporting, unlike traditional PBXs.
D. Cisco Unified Communications decreases costs of MACs
E. A PBX offers increased security.
