I am having sound issues (echo, distortion, etc) with my Konftel 300Wx : Knowledge Base

If you run into problems with echo or audio distortion on Konftel 300Wx you can use below firmware.

For use with Konftel Upgrade Utility:

Make sure to download and install Konftel Upgrade Utility first, found here:

For use with SD card:

If you still are having audio issues with the 300Wx please contact us using this form:

I am having sound issues (echo, distortion, etc) with my Konftel 300Wx Print