Specifications

7-5
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0
OL-10802-02
Chapter 7 Viewing Security, Device, Model, and Status Information on the Phone
Viewing Security Information
If neither the primary TFTP (TFTP Server 1) server nor the backup TFTP server
(TFTP Server 2) is listed in the CTL file, you must unlock the CTL file before you
can save changes that you make to the TFTP Server 1 option or to the TFTP Server
2 option on the Network Configuration menu. (For information about changing
these options, see the
“Configuring DHCP Settings” section on page 5-8.)
To unlock the CTL file from the Security Configuration screen, follow these steps:
Procedure
Step 1 Scroll to the CTL File menu and press Select.
Step 2 Press **# to unlock options on the CTL File menu.
If you decide not to continue, press **# again to lock options on this menu.
Step 3 Scroll to the CTL option that you want to change and press Erase.
After you make the change, the CTL file will be locked automatically.
Trust List Screen
The Trust List screen displays information about all of the servers that the phone
trusts.
If a CTL file is installed on the phone, you can access the Trust List screen by
choosing Settings > Security Configuration > Trust List.
To exit the Trust List screen, press the Exit softkey.
The Trust List screen contains these options:
• CAPF Server—IP address of the CAPF used by the phone. Also displays a
certificate
icon if a certificate is installed for this server.
• CallManager / TFPT Server—IP address of a Cisco Unified CallManager and
TFTP server used by the phone. Also displays a certificate
icon if a
certificate is installed for this server.
• SRST Router—IP address of the trusted SRST router that is available to the
phone, if such a device has been configured in Cisco
Unified CallManager
Administration. Also displays a certificate
icon if a certificate is installed
for this server.