Hi,
CWMS version 2.7 is end of life and end of support and no longer available for download/upgrade. I would recommend you to upgrade to later version 3.0 or 4.0. CWMS 3.0 is also end of life but the support is available till December 31, 2022. Below is CWMS 3.0 compatibility information:
- CWMS 3.0 - Supported with CUCM version 12.0, 11.5(1) SU3, 11.5(1)SU1, 11.0(1a), 10.5.2, 10.5, , 10.0, 9.1, 9.0.
- CWMS 3.0MR1 - Support is added for CUCM version 12.0(1) SU1, 11.5 SU4
- CWMS 3.0MR2 - Support is added for CUCM version 11.5 SU5
- CWMS 3.0MR2 - Support is added for CUCM version 12.5(1) SU1, 12.5
All this information is mentioned in CWMS 3.0 release notes:
https://www.cisco.com/c/en/us/td/docs/collaboration/CWMS/3_0/Release_Notes/cwms_b_release-notes-cwms-3-0.html#reference_7414CFA10B298E8E0A82361E3B2BEBBA
Below CSR compatibility matrix is correct as it specifies the recommend version:
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/uc_system/unified/communications/system/Compatibility/CSR-Compatibility-Matrix-InteractiveHTML.html#&ui-state=dialog
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Thanks, Vaijanath S.