On Jun 17, 2017, at 4:32 AM, Giovanni Maruzzelli <gmaruzz@gmail.com> wrote:

On 16 June 2017 at 06:02, chenyzhi <eastour@163.com> wrote:

Yes ,I can hear all the IVR prompt voices correctly.

I don't think it's  a NAT problem ,because both the x-lite and the freeswitch are in the same LAN.

The sip trace log is in the attatchment. Thank you.

PS  I tested this on another freeswitch box ,version:

FreeSWITCH Version 1.6.16+git~20170403T142423Z~e6d643b29c~32bit (git e6d643b 2017-04-03 14:24:23Z 32bit)

It can detect dtmf on outgoing calls.  Maybe this only happens on FreeSWITCH Version 1.9.0+git~20170518T231917Z~a1fc18aee5~32bit (git a1fc18a 2017-05-18 23:19:17Z 32bit)

then use the stable version, and open a jira for this issue citing the master version you are using