What is a Cisco ISR? What Is ISR? ISR stands for Integrated Service Router. The term "integrated services" describes a type of network architecture used to guarantee network Quality of Service (QoS). ISR series routers have edge networking capabilities and provide reliable, secure branch office connectivity.

The Cisco ISR4331/K9 Integrated Services Router (ISR) revolutionizes WAN communications in the enterprise branch. With new levels of built-in intelligent network capabilities and convergence, it specifically addresses the growing need for application-aware networking in distributed enterprise sites. These locations tend to have lean IT resources. But they often also have a growing need for direct communication with both private data centers and public clouds across diverse links, including Multi