Cisco 7912G Administration Guide - Page 7

Troubleshooting the Cisco IP Phone, Checking the Light Indicators on a Cisco IP Phone 7902G - firmware

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Contents 6 C H A P T E R Troubleshooting the Cisco IP Phone 6-1 Obtaining Status, Model, and Version Information 6-2 Viewing Status Messages 6-2 Displaying Network Statistics 6-3 Verifying Model and Serial Number 6-5 Verifying Firmware Version 6-6 Monitoring Cisco IP Phones Remotely 6-7 Resetting the Cisco IP Phone 6-8 Erasing the Local Configuration 6-8 Updating the Firmware Version 6-10 Checking the Light Indicators on a Cisco IP Phone 7902G 6-11 Resolving Startup Problems 6-12 Symptom: Cisco IP Phone Does Not Start Up 6-12 Symptom: Cisco IP Phone Not Registering with Cisco CallManager 6-13 Registering the Phone with Cisco CallManager 6-14 Checking Network Connectivity 6-14 Verifying TFTP Server Settings 6-15 Verifying IP Addressing and Routing 6-15 Verifying DNS Settings 6-16 Verifying Cisco CallManager Settings 6-16 Cisco CallManager and TFTP Services Are Not Running 6-16 Creating a New Configuration File 6-17 Symptom: Cisco IP Phone Resetting 6-18 Verifying Physical Connection 6-19 Identifying Intermittent Network Outages 6-19 Verifying DHCP Settings 6-19 Checking Static IP Address Settings 6-19 Verifying Voice VLAN Configuration 6-20 Verifying that the Phones Have Not Been Intentionally Reset 6-20 Cisco IP Phone Administration Guide for Cisco CallManager 3.3, Cisco IP Phones 7902G/7905G/7912G OL-6313-01 vii

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vii
Cisco IP Phone Administration Guide for Cisco CallManager 3.3, Cisco IP Phones 7902G/7905G/7912G
OL-6313-01
Contents
CHAPTER
6
Troubleshooting the Cisco IP Phone
6-1
Obtaining Status, Model, and Version Information
6-2
Viewing Status Messages
6-2
Displaying Network Statistics
6-3
Verifying Model and Serial Number
6-5
Verifying Firmware Version
6-6
Monitoring Cisco IP Phones Remotely
6-7
Resetting the Cisco IP Phone
6-8
Erasing the Local Configuration
6-8
Updating the Firmware Version
6-10
Checking the Light Indicators on a Cisco IP Phone 7902G
6-11
Resolving Startup Problems
6-12
Symptom: Cisco IP Phone Does Not Start Up
6-12
Symptom: Cisco IP Phone Not Registering with Cisco CallManager
6-13
Registering the Phone with Cisco CallManager
6-14
Checking Network Connectivity
6-14
Verifying TFTP Server Settings
6-15
Verifying IP Addressing and Routing
6-15
Verifying DNS Settings
6-16
Verifying Cisco CallManager Settings
6-16
Cisco CallManager and TFTP Services Are Not Running
6-16
Creating a New Configuration File
6-17
Symptom: Cisco IP Phone Resetting
6-18
Verifying Physical Connection
6-19
Identifying Intermittent Network Outages
6-19
Verifying DHCP Settings
6-19
Checking Static IP Address Settings
6-19
Verifying Voice VLAN Configuration
6-20
Verifying that the Phones Have Not Been Intentionally Reset
6-20