[Freeswitch-users] Detect answer on FXO device

[Michael Collins]

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 'answer supervision'. It might also be in a section along with
'disconnect supervision.'

-MC

On Tue, May 15, 2012 at 7:23 AM, Cristian Re <cristian.re at adctelecom.it>wrote:

> I have a Grandstream GXW4108 device, connected to a PSTN line and I use
> it to make outbound calls via freeswitch.
> The problem I have is that this device sends SIP 200/OK message
> immediatly after freeswitch INVITE.
> There is a way to configure freeswitch to detect the answer (with voice
> detetection?) and propagate the 200/OK message only on answered calls?
>
> Thanks
> Cristian
>
>
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