Cisco 7970G Administration Guide - Page 11
General Troubleshooting Tips for the Cisco Unified IP Phone Expansion Module - factory reset
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Page 11 highlights
Contents Verifying TFTP Server Settings 9-4 Verifying IP Addressing and Routing 9-5 Verifying DNS Settings 9-5 Verifying Cisco Unified Communications Manager Settings 9-5 Cisco Unified Communications Manager and TFTP Services Are Not Running 9-6 Creating a New Configuration File 9-7 Registering the Phone with Cisco Unified Communications Manager 9-8 Symptom: Cisco Unified IP Phone Unable to Obtain IP Address 9-8 Cisco Unified IP Phone Resets Unexpectedly 9-8 Verifying Physical Connection 9-9 Identifying Intermittent Network Outages 9-9 Verifying DHCP Settings 9-9 Checking Static IP Address Settings 9-10 Verifying Voice VLAN Configuration 9-10 Verifying that the Phones Have Not Been Intentionally Reset 9-10 Eliminating DNS or Other Connectivity Errors 9-11 Checking Power Connection 9-12 Troubleshooting Cisco Unified IP Phone Security 9-12 General Troubleshooting Tips 9-15 General Troubleshooting Tips for the Cisco Unified IP Phone Expansion Module 7914 (SCCP Phones Only) 9-19 Resetting or Restoring the Cisco Unified IP Phone 9-19 Performing a Basic Reset 9-20 Performing a Factory Reset 9-21 Using the Quality Report Tool 9-22 Monitoring the Voice Quality of Calls 9-22 Using Voice Quality Metrics 9-23 Troubleshooting Tips 9-24 Where to Go for More Troubleshooting Information 9-26 Cisco Unified IP Phone 7970G/7971G-GE Administration Guide for Cisco Unified Communications Manager 6.1 OL-14626-01 11