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Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.1 (SIP), Cisco Unified IP Phones
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Chapter4 Configuring Settings on the Cisco Unified IP Phone
Security Configuration Menu
CTL File Screen
The CTL File screen includes the options described in Table4-19.
802.1X
Authentication
Allows you to enable 802.1X
authentication for this phone.
See the “802.1X Authentication and
Status” section on page 4-42.
802.1X
Authentication Status
Displays real-time status progress of
the 802.1X authentication
transaction.
Display only—Cannot configure.
Table4-18 Security Menu Settings (continued)
Option Description To Change
Table4-19 CTL File Settings
Option Description To Change
CTL File Displays the MD5 hash of the CTL
file that is installed in the phone. If
security is configured for the phone,
the CTL file installs automatically
when the phone reboots or resets.
•A locked padlock icon in
this option indicates that the
CTL file is locked.
•An unlocked padlock icon
indicates that the CTL file is
unlocked.
For more information about this file,
refer to the “Configuring the Cisco
CTL Client” section in Cisco
Unified CallManager Security Guide.