Hi, I'm using 1.12.1 with canreinvite=yes and a SIP proxy. I found the ACK that Asterisk sends to the Caller party is not going through the SIP proxy even if the reINVITE and the 200 are passing through the proxy. In the case of the Called party the reINVITE process is OK. I also found that further reINVITEs to the Caller are send directly to its IP and port and again the SIP proxy is not used. Please check the packet capture with the reInvite, the 200 and the ACK, and the second reInvite. http://pastebin.com/800980 Any ideas? Thanks, Humberto __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com