For teaching, I need to set up a lab with which engineers would learn VoIP troubleshooting.
I was trying to avoid TDM but as this mailing list is full of echo problems testimonies, I'm wondering if I should include something related to echo.
1. Would you include echo troubleshooting ?
2. If positive, how would you generate such echo ?
If possible, I would like to avoid any real connection to the outside would.
I would rather connect an asterisk server to another asterisk server or to anything capable to generate echo so that people can learn echo cancelling techniques.
The set up would then be :
SIP hardphones or softphones ------ Asterisk with echocan enabled board ---------- Box generating echo
Regards
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