Hi, I have a question about the your 1st question. If you able to register to server, then your sip id should be something similar like "sip:Aclient at 192.168.1.1" and "sip:Bclient at 192.168.1.1" since both register to the server at 192.168.1.1 is it? So when you make call, you should call to "sip:Bclient at 192.168.1.1" instead of the ip address of client B. That is what I think the problem might be. Please correct me if i was wrong. Thanks :) Regards, ws ________________________________ From: ljmscsq <ljmscsq@xxxxxxx> To: pjsip <pjsip at lists.pjsip.org> Sent: Wednesday, March 11, 2009 11:44:44 AM Subject: Help me! I have downloaded the pjproject and built the source with VC++6.0 successfully.Now I want to test pjsua project.but I am facing some problems. 1.I test it in one LAN. I build sip server on my computer,its IP is 192.168.1.1. I run A client in 192.168.1.1 and B Client in 192.168.1.2.Two clients can be registered to server successfully.I can see the register information in sip server admintool.But two clients can't call each other.when I use A to call B,I use command m,make call sip:192.168.1.2 ,it doesn't show errors but nothing happens on B.What's wrong with it? 2.My sip server is listening 5060 port .when I change this port,I can't register successfully.I want to know how to change default port in pj source for register. ________________________________ ????????????????? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090313/306a8e80/attachment.html>