SIP协议，中文，也是网上掏来的，大家参考，谢谢。

H323服务器端程序，用到pwlib和openh323 -H323 server, using pwlib and openh323

一个制作很精美的视频聊天程序，可以方便的改变音量，视频采集率，有通迅录，还带文本聊天功能-a very beautifully produced video chat program, to facilitate the change in volume, rate video capture, communications were also brings text chat

客户端使用NetMeeting，服务端使用mfc.exe可以获得比较好的效果-clients use NetMeeting, The server can use mfc.exe fairly good results

第十章代码，基于ＶＩＳ　Ｈ．３２３　Ｄｌｌ　Ｌｉｂｒａｒｙ的视频会议系统-Chapter X code, based on the VIS H. 323 Dll Library of Video Conference System

H323客户端的图形程序，用到pwlib和openh323 -Graphic UI app for H323 client, using pwlib and openh323

G726局域网语音通话程序和源代码 这是使用G726语音压缩（16kbps）和RTP进行传输的程序，因为我没有带WIFI的PPC，所以每个程序都是单独测试的，PC端和PPC端分别都工作正常。 G726编解码算法来自OpenH323.传输使用的RTP可以在RTP程序中找到讲解，这个程序主要是G726的函数。将整个 G726封装为g726_Encode和g726_Decode两个函数，参数为压缩和解压数据存储的地址指针，可以将960字节压缩到120字节和将 120字节解压为960字节。这里G726使用的时候，音频设置为8kHz，16位量化，单声道。 使用方法很简单，只用两端各自输入对方的IP，然后按下“开始对话”，就可以进行语音通信了。 PPC端的运行比较稳定，已经进行了自收自发近一个小时连续工作的测试，非常稳定，话音清晰。-G726 LAN voice calls procedures and the source code is the use of voice compression G726 (16kbps ) and RTP for the transmission process, because I did not bring WIFI the PPC, there are separate procedures for each test, PC- and PPC-were all normal work. G726 codec algorithm from the OpenH323. RTP transmission can be used in the process to find RTP stresses Xie, this procedure is mainly a function of G726. Packaging whole G726 for g726_Encode and g726_Decode two functions, Parameters for the compression and decompression of data storage address pointer, 960 bytes can be compressed to 120 to 120 bytes and bytes to

RTC下接收呼叫的例子（如果是VC用户，请新建一个APPLICATION 32空工程，然后，用ADD FILE的方法把所有的文件包含在工程中编译）-RTC receive calls example (If yes VC users, a new air APPLICATION 32 works, and then use the ADD FILE all the documents included in the project compiler)

AppWizard has created this NetPhone application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application.-AppWizard has created this NetPhone application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application.

oSIP开发者手册-oSIP Development Manual

Microsoft RTP Extensions specification.