Hello I have a problem, can anyone try to help me? When I use this code : elif self.call.info().state == pj.CallState.CONFIRMED: #Call is Answred print "[i] Call Answred" time.sleep(3) print "[i] Dial DTMF..." self.call.dial_dtmf("11") time.sleep(3) I didn't get any DTMF response, I can't hear anything (push buttons sounds or errors). What am I doing wrong? Best Regards to all PJSIP members. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20150516/a37f9f87/attachment.html>