This isnt the solution because it only appends rtpmap not fmtp, I tried it. *From:* freeswitch-users-bounces@lists.freeswitch.org [mailto: freeswitch-users-bounces@lists.freeswitch.org] *On Behalf Of *Avi Marcus *Sent:* jueves, 17 de noviembre de 2011 18:01 *To:* FreeSWITCH Users Help *Subject:* Re: [Freeswitch-users] a=fmtp missing on FS answer Anthony said you probably want this: http://wiki.freeswitch.org/wiki/Variable_verbose_sdp -Avi On Thu, Nov 17, 2011 at 10:24 PM, Camila Troncoso <ctroncoso@redvoiss.net> wrote: I´m trying to make a call trough FS with G729 annexb=no in one side and G729 annexb=no ( the same) in the other. I have a sangoma transcoding card installed and configured, all is working fine. I use this card because in some cases I need transcoding . So I have late-negotiation=true and disable-transcoding=false. The problem is that FS answer without a=fmtp as show in the picture. Freeswitch version is 1.0 *Error! Filename not specified.**Error! Filename not specified.* *From:* freeswitch-users-bounces@lists.freeswitch.org [mailto: freeswitch-users-bounces@lists.freeswitch.org] *On Behalf Of *Brian West *Sent:* jueves, 17 de noviembre de 2011 16:18 *To:* FreeSWITCH Users Help *Subject:* Re: [Freeswitch-users] a=fmtp missing on FS answer what exactly are you doing and what are the sip traces? What firmware rev? /b On Nov 17, 2011, at 12:52 PM, Camila Troncoso wrote: sip_append_audio_sdp _________________________________________________________________________ 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