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
I am not exactly sure I understand the explanation of the issue.
Echo is an analog function. In your case, echo would be created by the FXO port feeding too much energy into the analog line. The excess energy is reflected back; hence the echo. While I do not personally have experience with this particular module (I am a SIP guy), I have experience with many other makes of similar devices.
In reading thru the manual for the S PBX, there is little addressing the add-on modules; however the firmware release notes do make mention that settings involving the echo cancellation function are available. What these may be I am not sure, but at least one reference makes mention of the function to where it can be enabled or disabled.
I suggest that you disable the function and see if the issue persists. If so, then it would seem to be something else. If echo does occur, then hopefully there is a gain setting for both the TX and RX side. If so, then lower the gain on the TX side and test after each setting change by making a new call until such time as the echo is no longer present. Once the echo is no longer present, then you can try and enable the function and see if the "wind" sound reoccurs. If so, then disable it and see if you really need the function at all going forward.
I also see where you apparently posted the same question on a different manufacturer's site using their PBX model in the question rather than the S PBX. The answer above is the same regardless.
Thanks for your Answer Larry, a have a similar problem with Grandstream PBX.
When a close the echo cancellation mode the wind sound stop but the echo is very bad.
When i drop the tx gain the wind sound is less worse but the interlocutor has difficulty understanding me.
I know the engineer need do to some adjustment in the Asterisk algorithm .
I am learn with time psnt line and voip device is not a perfect match.
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