... and supports the voice Digital Signal Processor (DSP). It supports firewall functions, call processing, voice mail, and various application programs ... behavior, and traffic policy), HQoS, WLAN QoS, FR QoSSecurityACL, firewall, 802.1x authentication, AAA authentication, RADIUS authentication, HWTACACS authentication, broadcast ... router supplier,Original HUAWEI Enterprise AR1200 Series AR1220W-S Routers