Cisco 881 Integrated Service Router Series is fixed-configuration router that provides collaborative business solutions for secure voice and data communication to small businesses and enterprise teleworkers. Selected models offer concurrent broadband services over third-generation (3G), Metro Ethernet, and multiple types of DSL to provide business continuity. Wireless 802.11n and 3G on selected models offer LAN and WAN mobility. The routers provide the performance required for concurrent services, including firewall, intrusion prevention, content filtering, and encryption for VPNs; optional 802.11g/n for mobility; and quality-of-service (QoS) features for optimizing voice and video applications. In addition, the web-based Cisco Configuration Professional configuration tool simplifies setup and deployment.