That was a great work Nanang. Thanks for the hard work. We really appreciate it. I have a quick question, If I want to play the ringtone as I receive 180 response from the callee, which subroutine should I sue in your aps wrapper? I may play my own sound file. Seems like you have a call back on_stream_created on which you are creating sound port and connecting to conference. So I cant explicitly create stream anymore. Do I? Or use any of your API? if so which one??? Thanks Rawshan. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090214/7c7e54f2/attachment.html>