Source note · Cisco IP phone registration and TFTP and ITL and CTL
With SBD, phones request a signed configuration file named SEP<MAC>.cnf.xml.sgn, or SEP<MAC>.cnf.xml.enc.sgn when configuration encryption is in use.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- TFTP
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 8.0 and later
- Checked
- 2026-09-24
Sources
- Understand CUCM Security By Default and ITL Operation and Troubleshooting — Cisco Systems · tier 2 current vendor documentation · Phone downloads signed configuration file (file request examples)
Cite this note
APA
WarmTransfer. (2026, September 24). Cisco IP phone registration and TFTP and ITL and CTL: source note cisco-phone-registration-signed-config-names. WarmTransfer. https://warmtransfer.net/knowledge/claims/cisco-phone-registration-signed-config-names
BibTeX
@misc{warmtransfer-claim-cisco-phone-registration-signed-config-names,
title = {Cisco IP phone registration and TFTP and ITL and CTL: source note cisco-phone-registration-signed-config-names},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cisco-phone-registration-signed-config-names},
note = {Source note cisco-phone-registration-signed-config-names, checked 2026-09-24}
}