An upgrade alone keeps an existing ITLRecovery certificate at 5-year validity. The 20-year validity applies only after a fresh install or after the ITLRecovery certificate is regenerated.
Checked 2026-10-01
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- ITLRecovery
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 12.5(1)SU3 and later
- Checked
- 2026-10-01
Sources
- Security Guide for Cisco Unified Communications Manager, Release 12.5(1)SU3 - Default Security — Cisco Systems · tier 2 current vendor documentation · Default Security > Initial Trust List (ITLRecovery validity note)
Cite this note
APA
WarmTransfer. (2026, October 1). Troubleshooting phone trust and ITL failures in Unified CM: source note cucm-itl-trust-troubleshooting-itlrecovery-upgrade-5y. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-itl-trust-troubleshooting-itlrecovery-upgrade-5y
BibTeX
@misc{warmtransfer-claim-cucm-itl-trust-troubleshooting-itlrecovery-upgrade-5y,
title = {Troubleshooting phone trust and ITL failures in Unified CM: source note cucm-itl-trust-troubleshooting-itlrecovery-upgrade-5y},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-itl-trust-troubleshooting-itlrecovery-upgrade-5y},
note = {Source note cucm-itl-trust-troubleshooting-itlrecovery-upgrade-5y, checked 2026-10-01}
}