How to check the echo problem?

[Grace Liu]

Does anybody meet with the problem like this?
We made the bridge settings between two 3CX servers through VPN, when the extension of server A was in one call with the other extension of server B, the extension of server A heard the echo, and the other extension of server B didnot hear the echo.
1. the extension of server A can be yealink T42S and windows desktop app;
2. when we check the recording file in server A, we can hear the echo too.

Do you have any suggestion to check the problem?

 

[jed]

I would set up the Bridge through port 5090 - then you remove the VPN overhead and herby - possibly - also the echo.

 

[Alphabetic]

Run a wireshark and see what audio is being sent.