Source note · Cisco IP phone registration and TFTP and ITL and CTL
Cisco IP phones download the ITL file during a reset, a restart, or after downloading the CTL file.
Checked 2026-09-24
The Cisco Unified IP Phone download the ITL file during a reset, restart, or after downloading the CTL file.
- 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
Cite this note
APA
WarmTransfer. (2026, September 24). Cisco IP phone registration and TFTP and ITL and CTL: source note cisco-phone-registration-itl-download-triggers. WarmTransfer. https://warmtransfer.net/knowledge/claims/cisco-phone-registration-itl-download-triggers
BibTeX
@misc{warmtransfer-claim-cisco-phone-registration-itl-download-triggers,
title = {Cisco IP phone registration and TFTP and ITL and CTL: source note cisco-phone-registration-itl-download-triggers},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cisco-phone-registration-itl-download-triggers},
note = {Source note cisco-phone-registration-itl-download-triggers, checked 2026-09-24}
}