Specifications
Table Of Contents
- Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0 and Later
- Contents
- Preface
- An Overview of the Cisco Unified Wireless IP Phone 7921G
- An Overview of the Voice Over IP Wireless Network
- Understanding the Wireless LAN
- Components of the VoIP Wireless Network
- Voice Over IP Wireless Network Configuration
- Site Survey Verification
- Setting Up the Cisco Unified Wireless IP Phone 7921G
- Before You Begin
- Installing the Cisco Unified Wireless IP Phone 7921G
- Powering On the Cisco Unified Wireless IP Phone 7921G
- Understanding the Phone Startup Process
- Using the Cisco Unified Wireless IP Phone 7921G Web Pages
- Using the USB Connection for Initial Phone Configuration
- Updating Phones Remotely
- Configuring Network Profiles
- Configuring USB Settings
- Configuring Trace Settings
- Using System Settings
- Configuring Settings on the Cisco Unified Wireless IP Phone 7921G
- Accessing Network and Phone Settings
- Configuring Network Profile Settings
- Changing Phone Settings
- Configuring the Security Certificate on the Phone
- Changing the USB Configuration
- Configuring Features, Templates, Services, and Users
- Configuring Cisco Unified Wireless IP Phones in Cisco Unified CallManager
- Telephony Features Available for the Phone
- Specific Configuration Options for the Cisco Unified Wireless IP Phone 7921G
- Configuring Softkey Templates
- Modifying Phone Button Templates
- Setting Up Services
- Configuring Corporate and Personal Directories
- Adding Users to Cisco Unified CallManager
- Managing the User Options Web Pages
- Creating Custom Phone Rings
- Viewing Security, Device, Model, and Status Information on the Phone
- Monitoring the Cisco Unified Wireless IP Phone Remotely
- Troubleshooting the Cisco Unified Wireless IP Phone 7921G
- Resolving Startup and Connectivity Problems
- Resolving Voice Quality and Roaming Problems
- General Troubleshooting Information
- Erasing the Local Configuration
- Providing Information to Users By Using a Website
- Supporting International Users
- Physical and Operating Environment Specifications
- Checklist for Deploying the Cisco Unified Wireless IP Phone 7921G
- Index

Chapter 7 Viewing Security, Device, Model, and Status Information on the Phone
Viewing Security Information
7-4
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0
OL-10802-02
Accessing the CTL File Screen
If a CTL file is installed on the phone, you can access the CTL File screen by
choosing Settings > Security Configuration > CTL File.
To exit the CTL File screen, press the Exit softkey.
The CTL File screen contains these options:
• CTL File—Displays the MD5 hash of the certificate trust list (CTL) file that
is installed in the phone, and provides access to the CTL File menu. If no CTL
file is installed on the phone, this field displays Not Installed. (If security is
configured for the phone, the CTL file installs automatically when the phone
reboots or resets. For more information about this file, refer to
Cisco
Unified CallManager Security Guide.)
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.
• CAPF Server—IP address of the CAPF server 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.
Note When the wireless IP phone is connected to a Cisco Unified CallManager
Release
5.0 or later, you can have multiple security profiles assigned to a phone.
When the phone has more than one security profile using different secure Cisco
Unified CallManager clusters, you must delete the CTL file from the current
profile before enabling another profile. See
“Understanding Security Profiles”
section on page 1-14.