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 1 An Overview of the Cisco Unified Wireless IP Phone 7921G
Understanding Security Features for Cisco Unified IP Phones
1-14
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0
OL-10802-02
Related Topics
• Understanding Security Profiles, page 1-14
• Identifying Encrypted and Authenticated Phone Calls, page 1-15
• Viewing Device Information, page 7-6
• Security Restrictions, page 1-16
Understanding Security Profiles
A security profile, which defines whether the phone is non-secure, authenticated,
or encrypted, is associated with every Cisco Unified IP Phone that is supported in
Cisco
Unified CallManager 5.0 and later. For information about configuring the
security profile and applying the profile to the phone, refer to Cisco Unified
CallManager Security Guide, Release 5.0.
Note For Cisco Unified IP Phones using Cisco Unified CallManager 4.1 and later,
security is configured on each phone. For more information about configuring
security, refer to Cisco Unified CallManager Security Guide, Release 4.1 (2) or a
later release document.
Optional disabling of the web
server functionality for a phone
You can prevent access to a phone’s web page, which displays a
variety of operational statistics for the phone.
Phone hardening Additional security options, which you control from
Cisco
Unified CallManager Administration:
• Disabling Gratuitous ARP (GARP)
• Disabling access to the Setting menus
• Disabling access to web pages for a phone
Note You can view current settings for the GARP Enabled, and
Web Access options by looking at the phone’s Device
Information menu. For more information, see the
“Viewing
Security Information” section on page 7-2.
Table 1-2 Overview of Security Features (continued)
Feature Description