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 4 Using the Cisco Unified Wireless IP Phone 7921G Web Pages
Configuring Network Profiles
4-20
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0
OL-10802-02
Step 2 In the Key Type area, choose one of these character formats:
• Hex
• ASCII
Step 3 Enter an ASCII string or Hex digits in the Passphrase/Pre-shared key field. See
“Pre-shared Key Formats” section on page 4-19.
Step 4 Click Save to make the change.
Setting Wireless Encryption
If your wireless network uses WEP encryption, and you have set the
Authentication Method as Open + WEP or Shared Key + WEP, you must enter an
ASCII or hexadecimal WEP Key.
The WEP Keys for the phone must match the WEP Keys assigned to the access
point. Cisco
Unified Wireless IP Phone 7921G and Cisco Aironet Access Points
support both 40-bit and 128-bit encryption keys.
WEP Key Formats
You must use one of these formats when setting up a WEP key:
Hexadecimal
For hexadecimal keys, you can use one of the following key sizes:
• 40-bit—You must enter a 10-digit encryption key string that uses the hex
digits (0-9 and/or A-F); or example, ABCD123456.
• 128-bit—You must enter a 26-digit encryption key string that uses the hex
digits (0-9 and/or A-F); or example, AB123456789CD01234567890EF.
ASCII
For ASCII keys, you must enter a character string that uses 0-9, A-Z (upper and
lower case), and all symbols.
• 40-bit—You must enter a 5-character string; for example, GREG5.
• 128-bit—You must enter a 13-character string; for example,
GREGSSECRET13.