多选题Select the three foundational hardware components that comprise the Smart Business Communication System.（）AIPcelerate IPsmartSuiteBCisco Unified Communication 500 seriesCCatalyst ExpressDCisco UnifiedCallConnectorECisco Monitor DirectoryFCisco 500 seri
题目
多选题
Select the three foundational hardware components that comprise the Smart Business Communication System.（）
A
IPcelerate IPsmartSuite
B
Cisco Unified Communication 500 series
C
Catalyst Express
D
Cisco UnifiedCallConnector
E
Cisco Monitor Directory
F
Cisco 500 seriesphones