13 Feb
2011
13 Feb
'11
4:28 p.m.
I am trying to use RFC 2833 <http://tools.ietf.org/html/rfc2833> for DTMF with Freeswitch and tollfree termination providers like tollfreetollfree.comand 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. Thank you, Alex.