Hi.

I was trying to get a solution for this but I can't find any online.

When FreeSWITCH received an incoming call it send the call trought a provider, but my provider sometimes send OK(200) without 183(Session Progress) and the call is answered.

I need from FreeSWITCH to detect this behaviour and send 503 instead of sending OK(200) to the incoming call.

This possible?

Thank you all for any recommendations

Abel.

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