pjsip I'm useing pjsip to write phone client, It runs well in my internal sip server (OpenSer). I register it to the sip server (OpenSer) with public IP. It can be called when it is started, but can't be called after a few moment. I tested that it can call X-lite, but X-lite can't call it. I have viewed the Contact Header in the sip package, I found out that there is 'transport=UDP' in our client, but there is 'rinstance=*********' in X-lite. I set the 'pjsua_config.stun_host' to sip server's IP, but it run failed. I'm not sure how to set pjsua_config.stun_host. thanks! RGD Janferry 2008-03-27