一款利用OPENH323开发的VOIP软件，利用了SIP和H323协议~并且使用了网络穿透技术！欢迎大家下载-It is a Video conferencing and VoIP application for M$Windows. It is H323 and SIP protocol compatibale , based on OpenH323 project

VC++写的支持H.323和SIP的点对点网络电话VOIP系统源代码-TStone is p2p voip system.It can run windows or linux. It support h.323 and sip signaling.It is writed by c/c++ code.