The Bi PAC 8500/8520 series is ideally designed for small businesses to use as a substitute for local leased lines. As a substitute of a local leased line, the device offers a perfect solution of symmetric transmission for SOHO & SME users to enjoy high-speed SHDSL broadband services, as well as bandwidth-consuming applications such as video conferencing with more ease & speed than ever before. The Quality of Service feature ensures a smooth net connection for inbound & outbound data with minimal traffic congestion. The router also supports IPSec VPN for users to create a secure data communications environment between two or more sites. An abundance of integrated firewall security features such as SPI, Do S attack prevention, & URL Content Filtering provide users unparalleled protection from hackers. Supports Symmetric Data Rate of up to 2.3 Mbps / 4.6 Mbps High-speed Back-to-Back Connectivity for Bandwidth-consuming Applications High-speed Internet Access with SHDSL SOHO Firewall Security with Do S Prevention & SPI Parental Control with URL Blocking & Packet Filtering Diff Serv Quality of Service Control Secured Virtual Private Network (VPN) Dynamic Domain Name System (DDNS) Available Syslog monitoring Integrated 4-port Ethernet Switch Ideal for Office Users Please note: networking components such as switches, routers & wireless devices require that speeds & standards be consistent throughout the network to gain optimum performance. To avoid compatibility clashes or for advice, please contact us on solutions@ebuyer.com.