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@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

_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com

FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com

Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.com

FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org