How to Export Syslogs from a Yealink Device

This guide explains how to obtain system logs (syslogs) from a Yealink IP phone for troubleshooting purposes.

Prerequisites

• Computer: Must be connected to the same network as the phone.

• IP Address: Press the OK button on the phone (or tap Menu > Status) to find the IPv4 address (e.g., 192.168.1.15).

• Credentials: Default login is usually username: admin / password: admin.

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Method 1: The "One-Click" Method (Recommended)

For phones running Firmware V84 or higher.

1. Access Web UI: Open a web browser and enter the phone’s IP address. Log in.

2. Navigate: Go to Settings > Configuration.

3. Locate Diagnostic Tool: Find the section labeled Export All Diagnostic Files (sometimes found under System > System Diagnostic).

4. Start Logging: Click the Start button. (This automatically sets the log level to 6/Debug).

5. Reproduce Issue: Perform the specific action that causes the error (e.g., make a failing call).

6. Stop Logging: Click Stop.

7. Download: Click Export to download the complete diagnostic package (usually a .zip or .tar file).

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Method 2: The Manual Method

For older firmware or if the one-click option is unavailable.

Step 1: Configure Log Level

1. Log in to the phone’s Web UI.

2. Go to Settings > Configuration.

3. Find the Syslog or Local Log section.

4. Set Local Log Level to 6 (or "Debug").

   • Note: The default Level 3 does not provide enough detail for troubleshooting.

5. Click Confirm. (Allow the phone to reboot if prompted).
   
   

Step 2: Reproduce the Issue

1. Recreate the problem: Make the call or trigger the error.

   • Critical: You must reproduce the issue while the log level is set to 6.
     
     

Step 3: Export the Log

1. Return to Settings > Configuration.

2. Under Export System Log (or "Local Log"), click Export.

3. Save the file to your computer.
   
   

Official Yealink Resources

• Yealink Support: Export All Diagnostic Files (The "One-Click" Method)

  • Best for: General users. This article covers the modern method of exporting the entire diagnostic package (syslogs, config, and trace) in a single .tar file.

• Yealink Support: Local Log Configuration (The "Manual" Method)

  • Best for: Advanced troubleshooting. This explains the different log levels (0-6), how to configure them manually, and file size limits.

• Yealink Support: Log File Definitions

Best for: Understanding what is actually in the logs. It briefly explains the difference between boot.log (boot-up process) and sys.log (system operations).

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