: Adds support for AES 256 contact encryption and SRTP GCM 256 algorithm.
Updates ensure seamless integration with the latest versions of 3CX V20 and Microsoft Teams. yealink t53w firmware upd
If you encounter issues—such as the update failing to "stick"—community experts at the suggest a full factory reset before attempting the upload again. For those using managed services like 1Stream , ensure any zipped firmware files are fully unzipped before uploading to the GUI. Pro-Tip: Auto-Provisioning : Adds support for AES 256 contact encryption