The Cisco 830 Series routers, including the Cisco 837 model, extend the benefits of embedded network security to small offices and teleworkers with advanced security features and performance, high quality secure voice and video support, as well as manageability, scalability, and reliability features to reduce operational costs. The Cisco 837 ADSL Broadband Router has an integrated ADSL WAN port with a four-port 10/100 Ethernet LAN switch for connecting multiple PCs or network devices in a small-office network.