Dahdi echo cancelling not working

hardware:Wildcard TDM410P,wctdm24xxp+
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Echo Canceller: MG2
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I test to make a call, I can hear echo clear, but no echo sound in record。
the hardware work perfect with PBX14, I upgrade to 17, the phone client has echo sound.
what is may I try? thanks.

Hi @ekinwt
Maybe you can check with dahdi_monitor tool echo from which side is coming. RX or TX (far-end) side hearing echo. Try this command.
dahdi_monitor xxx -v -m
(xxx is your channel number )

Thank you for your reply.
I run dahdi_monitor tool, and I make a call, I think I’m TX side, when I speak, I can see RX has echo.

Yes you are TX side… RX is far-end. That means echo comes to you from far-end side.

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