nettalk,个人觉得非常不错的网络电话，集成视频，声音和文本聊天。提供源码，大家共同学习...

MyICQ是一套完全公开源代码的即时通讯软件，包括服务器端和客户端，可以用于互联网或局域网中。可以运行在Windows或Linux(KDE/Qt)操作系统上，这是Windows的客户端。MyICQ完全支持服务器之间的松散连接，这意味着任何人都可以在Internet上架设自己的服务器。群组功能使您能够享受到聊天室和网络游戏所带来的快乐。 --------------- 基本功能特点 --------------- 采用MySQL数据库 日志文件 配置文件 NT服务 数据库查询部分采用多线程 系统管理员(MyICQ# = 10000)可以发送广播消息给所有在线和离线的用户 客户端与服务器的通讯采用DES的加密算法 支持服务器松散连接 群组功能，包括聊天室和游戏大厅-MyICQ is a completely open-source instant messaging software, including server and client, can be used for the Internet or LAN. Can run on Windows or Linux (KDE/Qt) operating systems, This is the Windows client. MyICQ fully support server link between the loose, This means that anyone can set up in their own Internet server. Functional groups so that you can enjoy chat rooms and online games from happiness.--------------- Basic features using My--------------- SQL database log file configuration file NT server database query part of a multi-threaded system administrator (MyIC Q# = 10000) can be sent to all

视频音频处理演示文件，其中视频编解码包括XVID，H263P和H264，音频采用ILBC，音频做了AEC处理。-demonstration video audio processing documents, which include video codec XVID, H263P and H264, used ILBC audio, audio processing done by the AEC.

这是h.323协议呼叫发生器代码-agreement calls code generator

H.263编解码器实例，完成时间比较早，但对于初学者仍具有很大的参考价值。-H.263 codec example, the completion time relatively early for beginners but still have great reference value.

视频会议的代码，C/C++源码，通信图像传输类。-Video conferencing code, C/C++ Source, communication, image transmission category.

RTP/RTCP中英文协议文档及封包格式、协议分析，无线视频包丢失重传机制讲解及实现过程-RTP/RTCP protocol in English and Chinese documents and packet formats, protocol analysis, wireless video packet loss and retransmission mechanism to explain the implementation process

基于WindowsCE视频传输和回放的实现, 详细讲解了wence的工作过程和实现方式。-WindowsCE-based video transmission and playback of the realization of wence detailed account of the work process and realize the way.

跨平台（Linux，Windows）的开源SIP服务器端-Cross-platform (Linux, Windows) open-source SIP server-side

osip,exosip，VC6.0下编译版本，含例子程序。-osip, exosip, VC6.0 under the compiler version, containing examples of procedures.

企业电话语音录音管理系统,本系统 采用人机对话的操作方式，界面设计美观友好、操作灵活、方便、快捷、准确、数据存储安全可靠。  系统可以进行来电显示和来电接听等功能。  提供电话拨出功能，可以通过程序拨出电话。  提供客户管理功能，记录客户信息，并可以在拨出电话时以电话簿的形式显示客户信息。  提供电话录音功能，当电话接通时开始录音，当电话挂断时结束录音。  提供录音管理功能，可以通过程序修改录音文件的存储位置。  系统最大限度地实现了易维护性和易操作性。  系统运行稳定、安全可靠。 -the use of man-machine dialogue mode of operation, beautiful and friendly interface design, operation flexible, convenient, fast, accurate, secure and reliable data storage.  system can receive Caller ID and call functions.  set aside to provide telephone functions can be allocated through the telephone process.  management capabilities to provide customers, record customer information, and can be allocated at the time of telephone directory information of the client form.  Telephone recording function to provide, when the start recording when connected to phone, phone to hang up when the end of recording time.  manag