How to check the UC virtualization support. Virtualization support varies by CSR releases. Cisco Collaboration virtualization is the place where you can check Vmware compatibility
Cisco Collaboration virtualization
Click to access Cisco Collaboration Virtualization.
Select your applications and it takes you to the specific product hardware requirements page.
For example i choose CUCM and it took me the CUCM Supported Vmware version.
You can see that for CUCM version 14 Supported Versions of VMware vSphere ESXi= 6.7, 7.0 U1.
At this point some might ask , can I install CUCM 14 on 7.0 U2 ?
ESXi maintenance releases within a supported ESXi major/minor (e.g. within “6.7”, “6.7 U2”): all are supported unless otherwise indicated. Application versions with known incompatibilities will specify in their technical documentation if they do not support certain ESXi maintenance releases, or if they require a minimum maintenance release, or if they only support “up to” a certain maintenance release.