Yealink SIP-T41S User Manual page 93

Click Start to begin capturing signal traffic.
2.
The system log level will be automatically set to 6.
Reproduce the issue.
3.
Click Stop to stop the capture.
4.
The system log level will be reset to 3.
Click Export to open file download window, and then save diagnostic files to your local system.
5.
A diagnostic file named allconfig.tgz is successfully exported to your local system.
If the issue cannot be reproduced, just directly click Export to export all diagnostic files.
Note
Troubleshooting
83