Routers are family of modular, multi-service access platforms for small offices to large-sized offices and Service Providers. With a vide range of modular interface options to fit in to every customer requirements to  provide solutions for data, voice video, hybrid dial access, virtual private networks (VPNs), and multi-protocol data routing. The high-performance ,modular architecture protects customers investment in network technology and integrated the function of several devices into a single,manageable solution.