CUCM 12.x and Unity Connection compatibility matrix

[ajber]

Is Unity Connection 10.5.2 compatible with CUCM 12.5? The compatibilty matrix is unclear.

[BradEast1]

Yes, it is - https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/compatibility/matrix/b_cucclientmtx12_.html#id_24436

[ajber]

If you are referring to table 14, it's still unclear for me to be honest. But I will follow Roger's advice as well.

Thanks

[Roger Kallberg]

Even if it is compatible the recommendation would be to keep them on the same major release. We had lots of issues with CUC 11.5 when we were in the middle of the process to upgrade CUCM to 12.5. After discussion with TAC they recommend us to upgrade CUC to 12.5. That solved the problems we had.