A. technical support that requires an annual subscription
B. management consultancy service offered to develop partner business process
C. support for partners building a new business
D. program to develop Unified Communications practice

A. allows multiple access points to be connected wirelessly， without the need for a wired Ethernet network
B. replicates configuration parameters across access points in the cluster， while optimizing network performance
C. automatically configures wireless client devices via Wi-Fi Protected Setup
D. can get real-time traffic or bandwidth statistics from an access point within a cluster