C1900-universalk9-mz-spa-158-3-m7-bin [extra Quality] -

: Allows deep network monitoring, traffic analysis, and performance capacity planning.

The 15.8(3)M7 Extended Maintenance release brings robust enterprise networking features to the Cisco 1900 platform: C1900-universalk9-mz-spa-158-3-m7-bin

The universalk9 designation uses a single universal image containing all available software features. Instead of upgrading the image to gain capabilities, you install a software activation license. Right-to-Use (RTU) and Technology Packages : Allows deep network monitoring, traffic analysis, and

Engineers deploy when they need the most stable, "final-form" version of IOS for a 1941 router. It’s the version you install when you want to "set it and forget it" in a remote site, knowing that the most common crashes and security holes discovered over the last decade have been patched. : Allows deep network monitoring

Instruct the system bootstrap architecture to point to the newly downloaded maintenance image.