Hi, What i need to do is DTMF detection. I have already done module (goertzel) for detecting DTMF in real_time (for example from microphone ). I stuck when i was trying to capture stream from voice connection. I was trying to do it with create_recorder(file_name) and named_pipe but it doesn't work. I also find some hint while reading FAQ, but it is not clear enough for me. http://trac.pjsip.org/repos/wiki/FAQ#tone-detect Could somebody help me and write better explanation of what i need to do now? Do i have to do some changes or add something in pjsua libraries and compile it again? Where do i have to do changes (which files?)? maciek -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100331/5b1ea1f6/attachment.html>