Source note · Unified CM certificate renewal
On Release 14 and later with default settings, renewing the CallManager, CAPF or TVS certificate will reset phones across the cluster, so these renewals belong in a maintenance window unless Phone Interaction on Certificate Update is set to manual.
inferred · Checked 2026-09-25
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- endpoints
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 14 and later
- Status
- inferred
- Checked
- 2026-09-25
Sources
- Security Guide for Cisco Unified Communications Manager, Release 15 and SUs - Certificates — Cisco Systems · tier 2 current vendor documentation · Certificates chapter, certificate regeneration notes (phone auto-reset) combined with Release 14 parameter default
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM certificate renewal: source note cucm-certificate-renewal-business-hours-resets. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-certificate-renewal-business-hours-resets
BibTeX
@misc{warmtransfer-claim-cucm-certificate-renewal-business-hours-resets,
title = {Unified CM certificate renewal: source note cucm-certificate-renewal-business-hours-resets},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-certificate-renewal-business-hours-resets},
note = {Source note cucm-certificate-renewal-business-hours-resets, checked 2026-09-25}
}