Startup Problems 159
Cisco IP Phone Does Not Go Through the Normal Startup Process 159
Cisco IP Phone Does Not Register with Cisco Unified Communications Manager 160
Phone Displays Error Messages 160
Phone Cannot Connect to TFTP Server or to Cisco Unified Communications Manager 161
Phone Cannot Connect to TFTP Server 161
Phone Cannot Connect to Server 161
Phone Cannot Connect Using DNS 161
Cisco Unified Communications Manager and TFTP Services Are Not Running 162
Configuration File Corruption 162
Cisco Unified Communications Manager Phone Registration 162
Cisco IP Phone Cannot Obtain IP Address 163
Phone Reset Problems 163
Phone Resets Due to Intermittent Network Outages 163
Phone Resets Due to DHCP Setting Errors 163
Phone Resets Due to Incorrect Static IP Address 164
Phone Resets During Heavy Network Usage 164
Phone Resets Due to Intentional Reset 164
Phone Resets Due to DNS or Other Connectivity Issues 164
Phone Does Not Power Up 165
Phone Cannot Connect to LAN 165
Cisco IP Phone Security Problems 165
CTL File Problems 165
Authentication Error, Phone Cannot Authenticate CTL File 165
Phone Cannot Authenticate CTL File 166
CTL File Authenticates but Other Configuration Files Do Not Authenticate 166
ITL File Authenticates but Other Configuration Files Do Not Authenticate 166
TFTP Authorization Fails 166
Phone Does Not Register 167
Signed Configuration Files Are Not Requested 167
Audio Problems 167
No Speech Path 167
Choppy Speech 168
One Phone in Daisy Chain Mode Doesn't Work 168
Cisco IP Conference Phone 8832 Administration Guide for Cisco Unified Communications Manager
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