: A comprehensive list of all 12.5(x) papers and manuals is available on the Cisco Documentation Roadmap Installation Notes Virtualization

Your VMware infrastructure must meet specific version requirements. For CUCM 12.5, the officially supported versions are . According to the OVA readme documentation, fresh installations on ESXi 6.5 (VMFS5 or 6) should use the OVA file version cucm_12.5_vmv13_v1.0.ova or later. The VMware virtual machine hardware must be at least version 13 .

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