I’ve never had to do exactly that, but maybe you can use api_on_media to transfer to another extension where you let it be answered and use bridge_pre_execute_bleg_app to drop the answer and send back a 503 if I’m the call wasn’t transferred.

There might be a simpler way, tho.

On Sat, 7 Dec 2019 at 22:27, Abel Monzon <abelcubano@gmail.com> wrote:

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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