The Cisco uBR 900 series cable access routers are designed to provide commercial services for cable operators, allowing them to expand their offerings for customers. The routers are based on the Data-Over-Cable Service Interface Specifications (DOCSIS) - a standard developed to ensure that any DOCSIS-certified cable modem can interoperate with any bi-directional, DOCSIS-qualified Cable Modem Termination System (CMTS).Fully standards-based, Cisco uBR 900 series cable access routers can operate in DOCSIS bridge mode similar to any standards-based cable modem. By enabling Cisco uBR 900 series cable access router IP routing and advanced Firewall and IPSec VPN features, cable operators can transform these devices into powerful customer premises equipment (CPE) or enterprise devices to support small businesses, branch offices, and corporate telecommuters. You gain the benefits of a trusted router with full business-class firewall integration and a quality cable modem in one box.