The Cisco® 819 4G LTE Integrated Services Routers (ISR) are the smallest Cisco IOS® Software routers with support for integrated fourth-generation (4G LTE) wireless WAN (mobile broadband backhaul) capabilities. They come in both hardened and non-hardened form factors. They are rapidly deployable, highly available, reliable, and secure, and are designed specifically for machine-to-machine (M2M) applications. Markets that benefit from these applications include industrial automation, small business, financial, healthcare, and retail. Fully integrated with Cisco IOS Software, the Cisco 819 4G LTE ISRs deliver enterprise-class features, including highly secure data, voice, and video communications to stationary and mobile network nodes across wired and wireless links. The Cisco 819 4G LTE 2.0 M2M is the industry leader to bring enterprise grade wireline like functionality such as Quality of Service (QoS) for cellular, Multi-Virtual Route Forwarding (Multi-VRF), advanced VPN, and Unified Communications solutions over LTE.

A critical component of the Cisco M2M architecture, the Cisco 819 4G LTE ISRs serve as the single, horizontal platform that enhances the Cisco implementation of "any device, anywhere" across multiple industries, including small business, small remote branch, banking, retail, healthcare, and government. It also provides the ability to extend Cisco product-based networks to small branch offices with a relatively low incremental investment, as well as to enable managed services offerings based on Cisco architecture.