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
Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7921G
1-16
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0
OL-10802-02
Security Restrictions
When using a phone that is not configured for encryption, the user cannot barge
into an encrypted call. When barge fails in this case, a reorder tone (fast busy tone)
plays on the barge initiator’s phone.
If the phone is configured for encryption, the user can barge into an authenticated
or non-secure call from the encrypted phone. After the barge occurs,
Cisco
Unified CallManager classifies the call as non-secure.
If the phone is configured for encryption, the user can barge into an encrypted
call, and the phone indicates that the call is encrypted.
A user can barge into an authenticated call, even if the phone that is used to barge
is non-secure. The authentication icon continues to display on the authenticated
phones in the call, even if the initiator’s phone does not support security.
Overview of Configuring and Installing the Cisco
Unified Wireless
IP Phone 7921G
When deploying a new IP telephony system, system administrators and network
administrators must complete several initial configuration tasks to prepare the
network for IP
telephony service. For information and a checklist for setting up
and configuring a complete Cisco IP telephony network, refer to the “System
Configuration Overview” chapter in the Cisco Unified CallManager System
Guide.
To add wireless IP phones to the IP network, system administrators also must
perform a site survey to determine where to place and install access points (APs)
for wireless voice coverage. For detailed information about a voice over WLAN
deployment, refer to the
Cisco Enterprise Mobility 3.0 Design Guide.
After you have set up the IP telephony system and configured system-wide
features in Cisco Unified CallManager, you can add IP phones to the system.
The following topics provide an overview of procedures for adding Cisco Unified
IP Phones to your network:
• Configuring the Cisco Unified Wireless IP Phone 7921G in Cisco Unified
CallManager, page 1-17
• Installing the Cisco Unified Wireless IP Phone 7921G, page 1-22