I have an issue with a S100 unit with FXO port ( last firmware ).
When i speak i always hear some kind a wind Sound.
Yeastar told me this problem come the echo cancelling.
``From Yeastar , it was caused by incoming signal is too weak and our echo cancellation algorithm is too strong so that involved that wind sound when you talk``
Is there anyone who has a similar problem?
My client is with Bell Canada ( traditional copper line).
Thank you all