Heh, i know what is SRTP :) I'm using it when it needs. But - i don't understand your question: >> why does I need implementation of srtp in the server side? i don't know why do you need it, because i haven't any information about your needings. As i said - if i need then i use SRTP, if it isn't possible (with asterisk) - then i use RTP. I don't see any problems with it. Explain me more please ;) cheers -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20091027/7c24255f/attachment.html>