The Cisco Integrated Services Router (ISR) technology concept, that was initially implemented on 1800, 2800, 3800 series, is now available on the small office and small business models in the 800 series routers. The ISR technology integrates several networking and security features on one device, such as wireless networking, security firewall, virtual private networks, quality of service etc. More specifically, some of the features included on one device include a built-in firewall, encryption, protection against hackers, 4-port switch, up to 10 virtual private network connections for allowing remote employees to access the LAN, prioritization for voice, wireless connectivity etc.

 The following table shows all the 800 series models with some of their importand features.

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