can you please explain us more detail: why do you say that you need SRTP? i'm working with asterisk without srtp and have no problems. What wrong with your application? Just use the default settings of pjsip - and it will be work with RTP. Don't understand your question, realy :) For example: i have a server(and proxy server too) and client based on pjsip library, in all of it i've done SRTP support optional, so when i connect to the asterisk then i disable SRTP in my aplication's settings, that's all folks ;) Best regards -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20091027/2027af8f/attachment.html>