PBX是Private Branch eXchange的短期内容。它是一个将公司的电话分机连接到外部公共电话网络以及移动网络的系统。今天的基于软件的IP PBX可以取代传统的硬件商务电话系统。PBX与VoIP技术协同工作，这就是为什么IP PBX通过TCP / IP协议栈为其内部网络提供音频/视频呼叫和即时消息通信，并将其内部网络与PSTN（公共交换电话网络）互连以进行电话通信。
随着VoIP技术的日益发展，通过一些额外的功能来提升您的PBX非常容易，以及拨号计划在那些通常有大量同时呼叫的通信网络中非常有用。拨号计划是服务器中的自动系统，用于管理内部和外部呼叫，呼叫转移，呼叫保持和限制。
It is a system that connects a company's telephone extension to external public telephone networks and mobile networks. Today's software-based IP PBX can replace the traditional hardware business telephone system. PBX works with VoIP technology, which is why IP PBX provides audio/video calls and instant messaging for its internal network through TCP/IP protocol stack, and interconnects its internal network with PSTN (Public Switched Telephone Network) for telephone communication.
With the development of VoIP technology, it's very easy to upgrade your PBX through some additional functions, and dialing plans are very useful in communication networks where there are usually a lot of simultaneous calls. Dial-up plan is an automated system in servers that manages internal and external calls, call transfer, call retention and restriction. (2019-04-28, C#, 4018KB, 下载4次)
网络会议是基于局域网或INTERNRT网的实时交互的计算机应用系统，利用组播的技术实现，任何人都可以讨论。进行相互的交流！
Web conferencing is based on the LAN or INTERNRT real-time interactive computer network applications, the use of multicast technology, anyone can be discussed. Communication with each other! (2010-12-04, C#, 76KB, 下载25次)