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

5-17
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0
OL-10802-02
Chapter 5 Configuring Settings on the Cisco Unified Wireless IP Phone 7921G
Configuring the Security Certificate on the Phone
• Configuring the Security Certificate on the Phone, page 5-17
• Changing the USB Configuration, page 5-19
Configuring the Security Certificate on the Phone
Security features establish and maintain authenticated communication streams
between the phone and the Cisco
Unified CallManager server, and digitally sign
files before they are delivered.
For more information about the security features, see the “Understanding Security
Features for Cisco Unified IP Phones” section on page 1-9. Also, refer to Cisco
Unified CallManager Security Guide.
A Locally Significant Certificate (LSC) installs on phones after you perform the
necessary tasks that are associated with the Certificate Authority Proxy Function
(CAPF). You can use Cisco
Unified CallManager Administration to configure an
LSC, as described in Cisco
Unified CallManager Security Guide.
Alternatively, you can initiate the installation of an LSC from the Security
Configuration menu on the phone. This menu also lets you update or remove an
LSC.
Before you do so, make sure that the appropriate Cisco Unified CallManager and
the CAPF security configurations are complete:
• The CTL file should have a CAPF certificate.
• The CAPF certificate must exist in the /usr/local/cm/.security/certs folder in
every server in the cluster.
• The CAPF is running and configured.
Refer to Cisco Unified CallManager Security Guide for more information.
Depending on how you have configured the CAPF, this procedure installs an LSC,
updates an existing LSC, or removes an existing LSC.
To configure an LSC on the phone, follow these steps: