Once the VM is configured and powered on with the bootable ISO mounted, the installation begins:

In this release, you cannot install or run Cisco Unified Communications Manager on server hardware; you must run these applications on virtual machines. The system requirements vary depending on the expected user load. The table below lists the most common deployment options as defined in the Cisco-provided OVA template.

Usually contain SU (Software Update) or K9 labels but lack the "bootable" designation in the description.

When you begin searching for the CUCM 12.5 image, you will likely notice that there are multiple types of files available on the Cisco Software Download portal. It is vital to understand the difference to avoid deployment headaches.

Cisco Unified Communications Manager (CUCM) is a popular call-processing component of the Cisco Unified Communications Solution. It provides a robust and scalable platform for voice, video, and unified communications. In this write-up, we will guide you through the process of downloading the CUCM 12.5 bootable ISO image.

: Open a non-bootable CUCM ISO using a tool like UltraISO or MagicISO . Locate the isolinux.bin file within the isolinux folder.

In the search bar, type Unified Communications Manager or navigate via the product tree: .