I don't think It's the DTMF type , because when I dial 5000 from x-lite (which has registered to freeswitch as 1001) ,I can hear the voice and if I press any dtmf on x-lite, freeswitch can recieve the dtmfs. This means that the DTMF type is correct ,otherwise freeswitch coudn't have received the dtmfs; when I enter the command "originate user/1001 5000" at the freeswitch console , my xlite will ring ,and I answered ,I can hear the voice ,I press some dtmf,but freeswitch can NOT receive any dtmf. really weird. At 2017-06-12 17:37:49, "Giovanni Maruzzelli" <gmaruzz@gmail.com> wrote: you need to check the DTMF type, you probably are using the wrong one (info-inband-rfc2833), and for some reason they are not negotiated On 12 June 2017 at 02:32, chenyzhi <eastour@163.com> wrote: I have read the logs ,but I didn't find any difference. Please make a test to see if this happens in your box. At 2017-06-10 06:49:34, "David Villasmil" <david.villasmil.work@gmail.com> wrote: Have you looked at the log? Bump the logging up and see what shows up... what you're seeing is very weird David On Fri, Jun 9, 2017 at 11:18 AM chenyzhi <eastour@163.com> wrote: Hi call 5000 from x-lite , you can hear the IVR voice and if you press dtmf keys , freeswitch can receive the dtmf keys . but , if you enter the command "originate user/1001 5000" , x-lite will ring ,answer it ,you can hear the IVR voice , press some keys ,the freeswitch can NOT receive any dtmf , why? _________________________________________________________________________ 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 -- Sincerely, Giovanni Maruzzelli OpenTelecom.IT cell: +39 347 266 56 18