Thanks! I just wanted to clarify that we need to have FS play the file, and as the RTP is being sent, to substitute RFC2833 packets into the outboundpacket stream in place of the inband tones within the wav file. Note that we are using the dptools playback function to play the file. Is spandsp able to do this kind of RTP subsitution? On Sunday, December 13, 2015 11:31 AM, Giovanni Maruzzelli <gmaruzz@gmail.com> wrote: Yes, use the function from.spandsp, and add the "relax" argument. I cannot remember the name of the function, is something like detect_tones detect_dtmf get_dtmf... Check http://confluence.freeswitch.org . If you cannot find it there, ask here again. sent from my mobile, Giovanni Maruzzelli cell: +39 347 266 56 18Il 13/Dic/2015 18:22, "D D" <tru083@yahoo.com> ha scritto: Hi, We have an application that needs to play wav files. The wav files haveinband DTMF tones. Can I configure FS to detect these tones and instead send out RFC2833 packets? I really hope there is a way, because we have an older DIalogic systemthat does this function, and I really don't want to use that! Thanks,David _________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.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 _________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.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