ADTRAN has designed and manufactured an assortment of products featuring routing technology, for more than five years with units installed in the networks of service providers and corporate customers worldwide. The modular NetVanta 3000 Series is ADTRAN’s stand-alone access router, which comes standard with a stateful inspection firewall, built-in DSU/CSU, a wealth of protocols supported, and a familiar command line interface (CLI). Other product lines, such as the ATLAS and Total Access Series of integrated access devices and the NetVanta 2000 Series of VPN/firewall products, include routing technology as an integral feature.