This appears to be a hardware fault. In order to process a RA from Yealink I require the device logs. Please enable logging then to attempt to recreate the issue. Make note of the timestamp when it occurred and rename the archive folder with the timestamp.
If the log files are larger than 20MB please send a download link instead.

Export Log Files to Local PC

  1. Go to System > System Diagnostic > Local Log on the web user interface.

  2. Turn on Enable Local Log.

  3. Select the desired value from the Local Log Level drop-down menu.
    The default local log level is “6”.

  4. Enter the limit value of the log files in the Max Log File Size field.

  5. Click Confirm to accept the change.

  6. Reproduce the issue.

  7. Click Export to save the file to your local system.

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