Cisco 7961G-GE - IP Phone VoIP Rozwiązywanie problemów i konserwacja - Strona 8

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Cisco 7961G-GE - IP Phone VoIP Rozwiązywanie problemów i konserwacja

Cisco Unified IP Phone Security Problems

Solution
In most cases, a phone restarts if it powers up by using external power but loses that connection and switches
to PoE. Similarly, a phone may restart if it powers up by using PoE and then connects to an external power
supply.
Cisco Unified IP Phone Security Problems
The following sections provide troubleshooting information for the security features on the Cisco Unified IP
Phone. For information about the solutions for any of these issues, and for additional troubleshooting
information about security, see Cisco Unified Communications Manager Security Guide.

CTL File Problems

The following sections describe problems with the CTL file:
Authentication Error, Phone Cannot Authenticate CTL File
Problem
A device authentication error occurs.
Cause
CTL file does not have a Cisco Unified Communications Manager certificate or has an incorrect certificate.
Solution
Install a correct certificate.
Phone Cannot Authenticate CTL File
Problem
Phone cannot authenticate the CTL file.
Cause
The security token that signed the updated CTL file does not exist in the CTL file on the phone.
Solution
Change the security token in the CTL file and install the new file on the phone.
CTL File Authenticates but Other Configuration Files Do Not Authenticate
Problem
Phone cannot authenticate any configuration files other than the CTL file.
Troubleshooting and Maintenance
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Troubleshooting and Maintenance