U4EA Fusion 400 Series Business Gateway, Model F420-1PS, New With Manual and Documentation CD, 17"W x 10"D x 2"H The U4EA Fusion 400 Series are all-in-one integrated IP communications device which enable delivery of unified network communications to businesses. U4EA?s MSBGs eliminate the need for separate router, firewall, NAT, Ethernet switch, SIP session controller and security products. The Fusion 400 series is made up of enterprise-grade, rack-mountable device suitable for small and medium enterprises. This product deliver QoS, IPSec and firewall/network address translation (FW/NAT). The U4EA Fusion product line is supported by U4EA?s guarantee of service, which guarantees service quality for applications of multiple media types (voice, data, video, collaboration), all accessible through a single access link (or WAN pipe). The Fusion 400 series of MSBGs deliver support for voice, video and data, while supporting a variety of integrated WAN connections. Options include Ethernet, DSL and T1/E1, as well as the use of external cable modems. The 400 series MSBGs also provide an optional redundant power supply. The Fusion Series was developed specifically for SIP-based next generation networks carrying multiple types of real-time applications coexisting with data and other streaming IP media. These interoperate with multiple VoIP products (both IP Centrex and IP PBX) and multiple vendors? IP phones. U4EA?s Fusion Series also supports VPN connections between multiple locations, allowing an IP PBX at one site to serve multiple offices.