... devices.The STA-504W includes a built-in QoS engine that helps prioritize Internet traffic ... latest encryption including WEP, WPA, and WPA2. In addition, this device includes Dual Active Firewalls (SPI ... NAT, NAPT, DNS, DDNS, DHCP Server UPnP, Virtual Server, DMZ SIP, H323 ALG Wireless Features Complies with ... Storage Humidity: 5%~90% non-condensing 3-in-1 device as DSL modem, wireless G access ...