Source note · Troubleshooting Cisco IP phone registration
On an 8800 Series phone, Applications > Admin Settings > Security Setup shows the Security Mode, whether an LSC is installed, and a Trust List menu with CTL File and ITL File entries.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- IP Phone 8800 Series
- Subsystem
- security
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Cisco IP Phone 8800 Series Administration Guide for Cisco Unified Communications Manager - Cisco IP Phone Security — Cisco · tier 2 current vendor documentation · Cisco IP Phone Security > Security Setup menu
Cite this note
APA
WarmTransfer. (2026, September 24). Troubleshooting Cisco IP phone registration: source note cisco-phone-registration-troubleshooting-security-menu. WarmTransfer. https://warmtransfer.net/knowledge/claims/cisco-phone-registration-troubleshooting-security-menu
BibTeX
@misc{warmtransfer-claim-cisco-phone-registration-troubleshooting-security-menu,
title = {Troubleshooting Cisco IP phone registration: source note cisco-phone-registration-troubleshooting-security-menu},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cisco-phone-registration-troubleshooting-security-menu},
note = {Source note cisco-phone-registration-troubleshooting-security-menu, checked 2026-09-24}
}