Enabling Packet Capture on Yealink Devices

[Guest DanH]

Hello Kazooists, this edition is another bit of esoterica for the Yealink folks, but it's an interesting and powerful function when utilized properly! This kind of diagnostic data can help with support and troubleshooting efforts across the board, and is fairly easy to set up. What follows are instructions for setting up packet captures (PCAPs) from a Yealink device UI.

To access the web UI for your Yealink phone you will need to enter the IP address for the Yealink device into a web browser. The IP address can be found by pressing the OK button on the phone. The default login credentials for Yealink are admin/2600.

Once logged into the Yealink web UI select Settings > Configuration. It should look something like this:

Set the PCAP Type to Enhanced and press Start, as seen here: 

 

 

You can now run tests for various issues where packet degradation or loss is suspected. Once your tests are completed click Stop. The new file will appear in your downloads. The created PCAP file can then be examined in software such as Wireshark. These kinds of resources from a primary source like an affected device can be very valuable to a support diagnostic process and can even immediately expose the cause for some issues. If anyone's already been using this method to acquire PCAPs, comments on your experience would be most welcome here!