[asterisk-users] underlying sound during sip calls

[Xavier Cardil]

Hi we have set up two asterisk machines where we do all the managing of SIP
calls. Now, sometimes we call and we get an underlying sound that is a
locution from a customer. What could make this to happen ? Is very strange
to us, but maybe we are missing something... some configuration, or anything
else . . . .

Thank you so much.
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