此系统可以实现视频通话功能，适合公司局域网开会交流使用，有c++和C#两种语言开发版本-This system can realize video call feature, exchange meetings for company local area network using a c++ and C# development version of the two languages

FreeSWITCH是以C撰写而成的开放源码电话应用软件，可以连接SIP H.323、IAX2、LDAP、Zeroconf、XMPP / Jingle，Google Talk等现有技术，架构出开放源码PBX系统或开放源码的VoIP交换平台。-FreeSWITCH based on open source telephony application software written in C by, can to connect SIP H.323, IAX2, LDAP, Zeroconf, X