Technically, answer detection is the job of the ATA. The problem is that it is an inexact science. I would look in the GXW docs to see if they have a section on &#39;answer supervision&#39;. It might also be in a section along with &#39;disconnect supervision.&#39; <br>
<br>-MC<br><br><div class="gmail_quote">On Tue, May 15, 2012 at 7:23 AM, Cristian Re <span dir="ltr">&lt;<a href="mailto:cristian.re@adctelecom.it" target="_blank">cristian.re@adctelecom.it</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I have a Grandstream GXW4108 device, connected to a PSTN line and I use<br>
it to make outbound calls via freeswitch.<br>
The problem I have is that this device sends SIP 200/OK message<br>
immediatly after freeswitch INVITE.<br>
There is a way to configure freeswitch to detect the answer (with voice<br>
detetection?) and propagate the 200/OK message only on answered calls?<br>
<br>
Thanks<br>
Cristian<br>
<br>
<br>
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