Yealink SIP-T21 E2 User Manual page 171

5. Click Export to open file download window, and then save the file to your local
system.
How to export system log?
We may need you to provide a system log to help analyze your problem.
To export the system log to a local PC via web user interface:
1. Click on Settings->Configuration.
2. Select 6 from the pull-down list of System Log Level.
The default system log level is "3".
3. Click Confirm to accept the change.
4. Mark the Local radio box in the Export System Log field.
5. Reproduce the issue.
Troubleshooting
161