Hello list, Before I state my problem, I wanted to highlight a generic problem: lack of any response from this list. Please change this frustrating policy. I was getting a 401 Authentication required response from Asterisk for INVITE, while testing with the latest PJSIP. I googled this issue and stumbled on this link: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2007-November/000657.html As mentioned in the link, I use realm="*" in my code. And as per the thread, this issue should have been fixed. So I am wondering why I should be getting the same problem? Any suggestions would be appreciated. TIA Vin