Source note · Unified CM certificate renewal
The CA-signed renewal technote for 14.x and 15.x warns that regenerating the CallManager and TVS certificates at the same time causes an unrecoverable mismatch with the ITL installed on endpoints.
Checked 2026-09-25
Do not regenerate CallManager and TVS certificates at the same time. This causes an unrecoverable mismatch to the installed ITL on endpoints.
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- itl
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 14.x-15.x
- Checked
- 2026-09-25
Sources
- Create New Certificates from Signed CA Certificates — Cisco Systems · tier 2 current vendor documentation · Warning note in the CallManager / TVS certificate steps
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM certificate renewal: source note cucm-certificate-renewal-cm-tvs-unrecoverable. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-certificate-renewal-cm-tvs-unrecoverable
BibTeX
@misc{warmtransfer-claim-cucm-certificate-renewal-cm-tvs-unrecoverable,
title = {Unified CM certificate renewal: source note cucm-certificate-renewal-cm-tvs-unrecoverable},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-certificate-renewal-cm-tvs-unrecoverable},
note = {Source note cucm-certificate-renewal-cm-tvs-unrecoverable, checked 2026-09-25}
}