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

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}
}

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