I am trying to use  <a href="http://tools.ietf.org/html/rfc2833" class="external" title="http://tools.ietf.org/html/rfc2833">RFC 2833</a> for DTMF with Freeswitch and tollfree termination providers like <a href="http://tollfreetollfree.com">tollfreetollfree.com</a> and others, however it only seem to work with 1-800 numbers not 866. InBand DTMF works perfectly, however I want to get 2833 working. Trying that with SJPhone direct connection to termination provider RFC DTMF works fine. So it seems that issue is with FreeSwitch, I also tried diffrent phone with FS X-Lite and Pap2T and both have problems. I collected tcpdump captures and i dont see any issues on the wire that is DTMF are being send and decodded by wireshark as they go to provider. I am really lost for solution, Please Help.<br>
<br>Thank you, Alex.<br>