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 9 Troubleshooting the Cisco Unified Wireless IP Phone 7921G
General Troubleshooting Information
9-24
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0
OL-10802-02
Logging Information for Troubleshooting
The following options can help you gather troubleshooting information:
• Using a System Log Server, page 9-24
• Using the Trace Logs on the unified IP phone, page 9-24
Using a System Log Server
To gather information about problems with the wired network that can cause
roaming delays or no connectivity, set up a system log server. Enable “syslog” on
the network switches and access points that is logged to the system log server.
Also enable Network Time Protocol (NTP) so that all access points and switches
use the same times.
For information about setting up a system log server, see “Configuring Trace
Settings” section on page 4-27.
Using the Trace Logs on the unified IP phone
When you are experiencing problems with registering with Cisco Unified
CallManager, or call connections, you can use this function to trace the path of a
packet from the phone to Cisco
Unified CallManager. The result shows the
number of hops and the IP address of each hop to reach the Cisco
Unified
CallManager server. You can use this information to check connectivity between
the phone, Cisco
Unified CallManager servers and gateways during a call.
For information about setting up trace logs and a system log server, see the
“Viewing Trace Logs” section on page 4-30.
Related Topics
• Resolving Startup and Connectivity Problems, page 9-1
• Resolving Voice Quality and Roaming Problems, page 9-11
• Erasing the Local Configuration, page 9-25