一个采用SIP标准协议的VOIP软电话,解压后,直接运行BAT文件注册控件就可以完全运行!-A standard protocol for SIP using the VOIP soft phone, after extracting, run the BAT file directly control register can be fully operational!

portsip的开发文档，SDK，用户手册，内含实例-portsip the development of documentation, SDK, user manuals, containing examples of