Specifications
Table Of Contents
- Cisco Unified IP Phone Administration Guide for Cisco Unified CM 8.5 (SCCP and SIP)
- Contents
- Preface
- An Overview of the Cisco Unified IP Phone
- Understanding the Cisco Unified IP Phones 7975G, 7971G-GE, 7970G, 7965G, and 7945G
- What Networking Protocols are Used?
- What Features are Supported on the Cisco Unified IP Phone 7975G, 7971G-GE, 7970G, 7965G, and 7945G?
- Understanding Security Features for Cisco Unified IP Phones
- Overview of Configuring and Installing Cisco Unified IP Phones
- Installing Cisco Unified IP Phones
- Preparing to Install the Cisco Unified IP Phone on Your Network
- Understanding Interactions with Other Cisco Unified IP Communications Products
- Providing Power to the Phone
- 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 of a Cisco Unified IP Phone
- Setting Up the Cisco Unified IP Phone
- Before You Begin
- Understanding the Cisco Unified IP Phone Components
- Installing the Cisco Unified IP Phone
- 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 Phone
- Configuring Settings on the Cisco Unified IP Phone
- Configuration Menus on the Cisco Unified IP Phone
- Overview of Options Configurable from a Phone
- Network Configuration Menu
- Device Configuration Menu
- Unified CM Configuration
- SIP Configuration Menu for SIP Phones
- Call Preferences Menu for SIP Phones
- HTTP Configuration Menu
- Locale Configuration Menu
- UI Configuration Menu
- Media Configuration Menu
- Power Save Configuration Menu
- Ethernet Configuration Menu
- Security Configuration Menu
- QoS Configuration Menu
- Network Configuration
- Security Configuration Menu
- Configuring Features, Templates, Services, and Users
- Telephony Features Available for the 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
- Customizing the Cisco Unified IP Phone
- Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone
- Monitoring the Cisco Unified IP Phone Remotely
- 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
- 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 Phone
- 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 Phone
- Giving Users Access to the User Options Web Pages
- How Users Access the Online Help System on the Phone
- How Users Get Copies of Cisco Unified IP Phone Manuals
- Accessing Cisco 7900 Series Unified IP Phone eLearning Tutorials (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 the Cisco Unified IP Phone 7975G, 7971G-GE, 7970G, 7965G, and 7945G
- Supporting International Users
- Technical Specifications
- Basic Phone Administration Steps
- Index
9-7
Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.5
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Chapter 9 Troubleshooting and Maintenance
Cisco Unified IP Phone Resets Unexpectedly
Verifying DHCP Settings
Follow this process to help determine if the phone has been properly configured to use DHCP:
1. Verify that you have properly configured the phone to use DHCP. See Network Configuration Menu,
page 4-5 for more information.
2. Verify that the DHCP server has been set up properly.
3. Verify the DHCP lease duration. Cisco recommends that you set it to 8 days.
Cisco Unified IP Phones 7971G-GE and 7970G send messages with request type 151 to renew their
DHCP address leases. If the DHCP server expects messages with request type 150, the lease will be
denied, forcing the Cisco Unified IP Phones 7971G-GE and 7970G to restart and request a new IP
address from the DHCP server.
Checking Static IP Address Settings
If the phone has been assigned a static IP address, verify that you have entered the correct settings. See
Network Configuration Menu, page 4-5 for more information.
Verifying Voice VLAN Configuration
If the Cisco Unified IP Phone appears to reset during heavy network usage (for example, following
extensive web surfing on a computer connected to same switch as phone), it is likely that you do not have
a voice VLAN configured.
Isolating the phones on a separate auxiliary VLAN increases the quality of the voice traffic. See
Understanding How the Cisco Unified IP Phone Interacts with the VLAN, page 2-3 for details.
Verifying that the Phones Have Not Been Intentionally Reset
If you are not the only administrator with access to Cisco Unified Communications Manager, you should
verify that no one else has intentionally reset the phones.
You can check whether a Cisco Unified IP Phone received a command from
Cisco Unified Communications Manager to reset by pressing the Settings button on the phone and
choosing Status > Network Statistics. If the phone was recently reset one of these messages appears:
• Reset-Reset—Phone closed due to receiving a Reset/Reset from Cisco Unified Communications
Manager Administration.
• Reset-Restart—Phone closed due to receiving a Reset/Restart from Cisco Unified Communications
Manager Administration.