Cisco 7941G

Cisco Unified IP Phone Security Problems 216
CTL File Problems 216
Authentication Error, Phone Cannot Authenticate CTL File 216
Phone Cannot Authenticate CTL File 216
CTL File Authenticates but Other Configuration Files Do Not Authenticate 217
ITL File Authenticates but Other Configuration Files Do Not Authenticate 217
Phone Does Not Register 217
Signed Configuration Files Are Not Requested 217
802.1X Authentication Problems 218
802.1X Enabled on Phone but Phone Does Not Authenticate 219
802.1X Not Enabled 219
Factory Reset of Phone has Deleted 802.1X Shared Secret 220
Audio and Video Problems 220
Phone Display Is Wavy 220
No Speech Path 220
General Telephone Call Problems 221
VPN-Connected Phone Does Not Log Calls 221
Phone Does Not Recognize DTMF Digits or Digits Are Delayed 221
Phone Call Cannot Be Established 221
Troubleshooting Procedures 222
Set Up Remote Phone 222
Check TFTP Settings 223
Check DHCP Settings 223
Verify DNS Settings 223
Start Service 224
Create New Phone Configuration File 224
Determine DNS or Connectivity Issues 225
General Troubleshooting Information 226
General Troubleshooting Tips for Cisco Unified IP Phone Expansion Module 229
Cisco Unified IP Phone Reset or Restore 229
Basic Reset 229
Perform Factory Reset 230
Additional Troubleshooting Information 231
Maintenance 231
Quality Report Tool 231
Cisco Unified IP Phone 7941G, 7941G-GE, 7942G, 7961G, 7961G-GE, and 7962G Administration Guide for Cisco Unified
Communications Manager 9.0 (SCCP and SIP)
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