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
2-1
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0
OL-10802-02
2
An Overview of the Voice Over IP
Wireless Network
With the introduction of wireless communication, wireless IP phones can provide
voice communication within the corporate wireless local area network (WLAN).
The Cisco
Unified Wireless IP Phone 7921G depends upon and interacts with
wireless access points and key Cisco
IP telephony components, including Cisco
Unified
CallManager, to provide wireless voice communication.
This chapter provides you with an overview of the interaction between the
Cisco
Unified Wireless IP Phone 7921G and other key components of the
Voice-over-IP (VoIP) network in the WLAN environment.
• Understanding the Wireless LAN, page 2-1
• Components of the VoIP Wireless Network, page 2-8
• Voice Over IP Wireless Network Configuration, page 2-27
• Understanding the Phone Startup Process, page 3-26
• Site Survey Verification, page 2-31
Understanding the Wireless LAN
This section includes the following topics about the wireless LAN:
• The 802.11 Standards for Wireless LAN Communications, page 2-3
• Connecting to the Wireless Network, page 2-4
• Security for Voice Communications, page 2-6