Source note · Cisco IP phone registration and TFTP and ITL and CTL
The ITL carries TVS certificates so the phone can reach TVS securely; the CAPF certificate supports configuration file encryption but is not required in the ITL because TVS can authenticate it.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- ITL
- 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, Initial Trust List section, ITL records list (TVS and CAPF certificates)
Cite this note
APA
WarmTransfer. (2026, September 24). Cisco IP phone registration and TFTP and ITL and CTL: source note cisco-phone-registration-itl-tvs-capf-certs. WarmTransfer. https://warmtransfer.net/knowledge/claims/cisco-phone-registration-itl-tvs-capf-certs
BibTeX
@misc{warmtransfer-claim-cisco-phone-registration-itl-tvs-capf-certs,
title = {Cisco IP phone registration and TFTP and ITL and CTL: source note cisco-phone-registration-itl-tvs-capf-certs},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cisco-phone-registration-itl-tvs-capf-certs},
note = {Source note cisco-phone-registration-itl-tvs-capf-certs, checked 2026-09-24}
}