多项选择题
A. web conferencing
B. auto attendant
C. voice mail
D. intercom and group paging
E. contact center features
F. a call-management device
多项选择题 Which three are the phases of the Cisco Smart Business Roadmap?（）
单项选择题 The Cisco 521 Wireless Express Access Point used in the Smart Business Communications System can be configured to operate in which mode?（）
多项选择题 What are two of the implementation ratings found in the SBR Value Assessment?（）