User's Manual
Table Of Contents
- Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
- Contents
- Preface
- An Overview of the Cisco Unified IP Phones
- Understanding the Cisco Unified IP Phone 7962G and 7942G 7962G, 7942G, 7961G, 7961G-GE, 7941G, and 7941G-GE
- What Networking Protocols are Used?
- What Features are Supported on the Cisco Unified IP Phone 7962G and 7942G?
- Understanding Security Features for Cisco Unified IP Phones
- Reducing Power Consumption on the Phones
- Overview of Configuring and Installing Cisco Unified IP Phones
- Preparing to Install the Cisco Unified IP Phones on Your Network
- Understanding Interactions with Other Cisco Unified IP Telephony Products
- Providing Power to the Cisco Unified IP Phones
- Understanding Phone Configuration Files
- Understanding the Phone Startup Process
- Adding Phones to the Cisco Unified Communications Manager Database
- Using Cisco Unified IP Phones with Different Protocols
- Determining the MAC Address for a Cisco Unified IP Phones
- Setting Up the Cisco Unified IP Phones
- Before You Begin
- Understanding the Cisco Unified IP Phone Components
- Installing the Cisco Unified IP Phones
- Attaching a Cisco Unified IP Phone Expansion Module
- Adjusting the Placement of the Cisco Unified IP Phone
- Verifying the Phone Startup Process
- Configuring Startup Network Settings
- Configuring Security on the Cisco Unified IP Phones
- Configuring Settings on the Cisco Unified IP Phones
- Configuration Menus on the Cisco Unified IP Phones
- Overview of Options Configurable from a Phone
- Network Configuration Menu
- Device Configuration Menu
- Unified CM Configuration Menu
- SIP Configuration Menu for SIP Phones Only
- Call Preferences Menu for SIP Phones
- HTTP Configuration Menu
- Locale Configuration Menu
- UI Configuration Menu
- Media Configuration Menu
- Ethernet Configuration Menu
- Security Configuration Menu
- QoS Configuration Menu
- Network Configuration Menu
- Security Configuration Menu
- Configuring Features, Templates, Services, and Users
- Telephony Features Available for the Cisco Unified IP Phone
- Configuring Product Specific Configuration Parameters
- Configuring Corporate and Personal Directories
- Modifying Phone Button Templates
- Configuring Softkey Templates
- Setting Up Services
- Adding Users to Cisco Unified Communications Manager
- Managing the User Options Web Pages
- Enabling EnergyWise on the Cisco Unified IP Phone
- Customizing the Cisco Unified IP Phones
- Monitoring the Cisco Unified IP Phones Remotely
- Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phones
- Troubleshooting and Maintenance
- Resolving Startup Problems
- Symptom: The Cisco Unified IP Phone Does Not Go Through its Normal Startup Process
- Symptom: The Cisco Unified IP Phone Does Not Register with Cisco Unified Communications Manager
- Identifying Error Messages
- Checking Network Connectivity
- Verifying TFTP Server Settings
- Verifying IP Addressing and Routing
- Verifying DNS Settings
- Verifying Cisco Unified Communications Manager Settings
- Cisco CallManager and TFTP Services Are Not Running
- Creating a New Configuration File
- Registering the Phone with Cisco Unified Communications Manager
- Symptom: Cisco Unified IP Phone Unable to Obtain IP Address
- Symptom: The Cisco Unified IP Phone Displays the Message Security Error
- Cisco Unified IP Phone Resets Unexpectedly
- Troubleshooting Cisco Unified IP Phone Security
- General Troubleshooting Tips
- General Troubleshooting Tips for the Cisco Unified IP Phone Expansion Module
- Resetting or Restoring the Cisco Unified IP Phones
- Using the Quality Report Tool
- Monitoring the Voice Quality of Calls
- Where to Go for More Troubleshooting Information
- Cleaning the Cisco Unified IP Phone
- Resolving Startup Problems
- Providing Information to Users Via a Website
- How Users Obtain Support for the Cisco Unified IP Phones
- Giving Users Access to the User Options Web Pages
- How Users Access the Online Help System on the Cisco Unified IP Phone
- How Users Get Copies of Cisco Unified IP Phone Manuals
- Accessing Cisco 7900 Series Unified IP Phone eLearning Tutorials for SCCP Phones Only
- How Users Subscribe to Services and Configure Phone Features
- How Users Access a Voice Messaging System
- How Users Configure Personal Directory Entries
- Feature Support by Protocol for Cisco Unified IP Phone
- Supporting International Users
- Technical Specifications
- Basic Phone Administration Steps
- Index

9-12
Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
OL-23091-01
Chapter 9 Troubleshooting and Maintenance
General Troubleshooting Tips
Peer Firmware Sharing fails. If the Peer Firmware Sharing fails, the phone will default to using the TFTP
server to download firmware. Access the log messages stored on the remote
logging machine to help debug the Peer Firmware Sharing feature.
Note These log messages are different from the log messages sent to the
phone log.
Cisco VT Advantage/Unified Video
Advantage (CVTA)
If you are having problems getting CVTA to work, make sure that the PC Port
is enabled, and that CDP is enabled on the PC port.
See Network Configuration Menu, page 4-5 for more information.
Phone call cannot be established The phone does not have a DHCP IP address, is unable to register to Cisco
Unified Communications Manager, and shows a Configuring IP or Registering
message.
Verify the following:
1. The Ethernet cable is attached.
2. The Cisco CallManager service is running on the Cisco Unified
Communications Manager server.
3. Both phones are registered to the same Cisco Unified Communications
Manager.
4. Audio server debug and capture logs are enabled for both phones. If
needed, enable Java debug.
Call established with the iLBC protocol
does not show that the iLBC codec is
being used
Call statistics display does not show iLBC as the receiver/sender codec.
1. Check the following by using Cisco Unified Communications Manager
Administration:
–
Both phones are in the iLBC device pool.
–
The iLBC device pool is configured with the iLBC region.
–
The iLBC region is configured with the iLBC codec.
2. Capture a sniffer trace between the phone and Cisco Unified
Communications Manager and verify that SCCP messages,
OpenReceiveChannel, and StationMediaTransmit messages have media
payload type value equal to 86. If so, the problem is with the phone;
otherwise, the problem is with the Cisco Unified Communications
Manager configuration.
3. Enable audio server debug and capture logs from both phones. If needed,
enable Java debug.
Table 9-2 Cisco Unified IP Phone Troubleshooting (continued)
Summary Explanation










