Which three options are features of the Cisco 3800 Series Integrated Services Routers?（）

• A、Integrated Hardware for offload of encryption services
• B、Wireless LAN
• C、SRST with centralized Cisco CallManager fro up to 120 IP Phones
• D、Support For up to Eight NMEs
• E、Cisco CallManager Express for up to 36 IP Phones support
• F、High Performance Architecture optimized for concurrent service deployment