Which feature in Cisco WebEx is the most important differentiator compared to other vendors in the collaboration technology?
A. Cisco WebEx is always installed on-premises
B. With an account, everyone can join Cisco WebEx meetings.
C. Web conferencing service is delivered over a proprietary network, which is optimized for security, performance, and reliability.
D. Cisco WebEx could be installed or collocated with Cisco Unified Communications Manager
