I'm using Mod lua's session:recordFile to record audio to a file, but when working with in-band DTMF, the digit I set to stop the recording not only stops it but its tone is also recorded in the audio file (as a result, all my recorded files end having a beep sound at the end of the file). I tried the following code from  http://wiki.freeswitch.org and it only happens when working with in-band DTMF. When working with RFC 2833 there are no beeping at all. function onInput(s, type, obj) if (type == "dtmf" and obj['digit'] == '#') then return "break"; end session:answer(); session:setInputCallback("onInput", ""); session:recordFile("/tmp/blah.wav", 30000, 10, 10); -- pressing # ends the recording session:streamFile("/tmp/blah.wav"); session:hangup(); Any help would be greatly appreciated. Thanks. Daniel