Source note · Cisco IP phone registration and TFTP and ITL and CTL
In Release 15 the ITLRecovery certificate validity is 20 years by default, configurable to 5, 10, 15 or 20 years, and the certificate is carried forward on upgrade.
Checked 2026-09-24
The validity of ITLRecovery has been extended from 5 years to 20 years
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- ITL Recovery
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs
- Checked
- 2026-09-24
Sources
- Security Guide for Cisco Unified Communications Manager, Release 15 and SUs - Default Security — Cisco Systems · tier 2 current vendor documentation · Default Security chapter, ITL Recovery / ITLRecovery certificate section
Cite this note
APA
WarmTransfer. (2026, September 24). Cisco IP phone registration and TFTP and ITL and CTL: source note cisco-phone-registration-itlrecovery-20y. WarmTransfer. https://warmtransfer.net/knowledge/claims/cisco-phone-registration-itlrecovery-20y
BibTeX
@misc{warmtransfer-claim-cisco-phone-registration-itlrecovery-20y,
title = {Cisco IP phone registration and TFTP and ITL and CTL: source note cisco-phone-registration-itlrecovery-20y},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cisco-phone-registration-itlrecovery-20y},
note = {Source note cisco-phone-registration-itlrecovery-20y, checked 2026-09-24}
}