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 2 An Overview of the Voice Over IP Wireless Network
Components of the VoIP Wireless Network
2-24
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0
OL-10802-02
Related Topics
• Interacting with Cisco Unified CallManager, page 2-24
• Components of the VoIP Wireless Network, page 2-8
• Voice Over IP Wireless Network Configuration, page 2-27
Interacting with Cisco Unified CallManager
Cisco Unified CallManager is the call control component in the network that
handles and routes calls for the wireless
IP phones. Cisco Unified CallManager
manages the components of the IP telephony system—the phones, access
gateways, and the resources—for such features as call conferencing and route
planning. When deploying Cisco
Unified Wireless IP Phone 7921G, you must use
Cisco Unified
CallManager Release 4.1, 4.2, 5.0 or later and SCCP protocol.
Before Cisco Unified CallManager can recognize a phone, it must register with
Cisco Unified
CallManager and be configured in the database. For information
about setting up phones in Cisco Unified CallManager, see the
“Configuring the
Cisco Unified Wireless IP Phone 7921G in Cisco Unified CallManager” section
on page 1-17.
You can find more information about configuring Cisco Unified CallManager to
work with the IP phones and IP devices in the Cisco Unified
CallManager
Administration Guide and Cisco Unified
CallManager System Guide.
WPA2
Open and Network
EAP—can use both
WPA AES Auto (AKM) with
WPA2
WPA2-PSK
Open and Network
EAP—can use both
WPA AES Auto (AKM) with
WPA2-PSK
Table 2-4 Authentication and Encryption Schemes (continued)
Cisco Access Point Configuration
Cisco Unified Wireless
IP Phone 7921G
Authentication
Key
Management
Common
Encryption Authentication