HI All, I am using the pjproject-1.10 and written an windows based application over the pjsua-lib. I have a sip proxy(Kamailio) in between my pjsip application and the SIP Server(Opensips + Asterisk). I register my windows pjsip application on two PCs with two account through the proxy and both the clients registers fine. Let me say one pjsip application registered on one PC is A and other is B. Now when I call from one endpoint A to another endpoint B then INVITE comes fine through the "sip proxy" which is in the INVITE packet route header also. But when the endpoint B replies the incoming INVITE with 100 trying, 180 ringing and 200 OK then these replies are not going through the "sip Proxy" and they reach the SIP Server directly which is wrong. PJSIP endpoint B also reply or respond with the same reply route that is through the SIP Proxy. I have tried both the options for the configuring the sip proxy in the pjsip application one is setting the sip proxy IP in "pjsua_acc_config.proxy" and other is "pjsua_config.outbound_proxy". But in both cases the issue is same as described above. Can anybody comment why pjsip is behaving like this or is this is some bug in pjsip. Regards Varun -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20140418/0b604033/attachment.html>