Thanks for your response Brian. I am sending you the capture of wireshark. hope it will help to understand the problem, and giving me some solution. ----- Original Message ----- From: "Brian West" <brian@freeswitch.org> To: "FreeSWITCH Users Help" <freeswitch-users@lists.freeswitch.org> Sent: Wednesday, February 15, 2012 11:17:34 AM Subject: Re: [Freeswitch-users] stop sip_info Can you provide the inbound invite for the call? Just the SDP is fine. /b On Feb 14, 2012, at 11:21 PM, Piyush Sharma wrote: I wrote a JavaScript for IVR, I used session.execute("stop_dtmf"); now dtmf is not detected. but if the phone generates the sip_info or rfc2833, it does not seem to work. Would someone tell me how can i stop them along with dtmf detection. -- Regards, Piyush Sharma, Coral Telecom Ltd. -- Brian West FreeSWITCH Solutions, LLC Phone: +1 (918) 420-9266 Fax: +1 (918) 420-9267 brian@freeswitch.org http://www.freeswitch.org