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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