The Cisco UC500 component of the Smart Business Communication System provides which three functions?（）A、Internet server hostingB、Call Manager Enterprise EditionC、VPN and encryptionD、Cisco Unity voice mailE、Layer 2 switchingF、Auto Attendant
题目
The Cisco UC500 component of the Smart Business Communication System provides which three functions?（）
- A、Internet server hosting
- B、Call Manager Enterprise Edition
- C、VPN and encryption
- D、Cisco Unity voice mail
- E、Layer 2 switching
- F、Auto Attendant