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Bootable images are often provided in the datastore for new hardware purchases or through e-delivery for new licenses. Non-Bootable vs. Bootable ISOs

Technical staff often use third-party tools like UltraISO to extract the isolinux.bin file from a non-bootable image and re-inject it to make the file bootable. Note: Using modified ISOs in production is generally unsupported by Cisco TAC. Deployment Requirements

Bootable ISOs are required for fresh installations or adding redundant nodes. They are generally obtained through the following official channels:

The search for is the first step in a journey toward building enterprise-grade voice infrastructure. While the internet is full of shortcuts, the only safe, stable, and legal path is through Cisco’s official channels.

: If you are in an emergency "pinch" for a new deployment, you can contact the Cisco Technical Assistance Center (TAC) to request a direct download link for bootable media. Base Version First