The Cisco 880G Series 4G LTE 2.0 ISRs are fixed-configuration routers that provide collaborative business solutions for secure voice & data communications to enterprise small branch offices. They provide persistent, reliable LTE connectivity with fallback & transparent handoff to earlier technologies. The routers are designed to deliver secure broadb&, Metro Ethernet or any x DSL variants, wireless WAN (WWAN) connectivity, & business continuity.