晕，VoIP用来穿透NAT的一种方式，通过三个基本的NAT

vic语音编解码标准，应用于voip系统-speech codec standard applied voip system

语音通信控件V3.6 集成G729A压缩算法，实时传输协议，支持一对一(点对点)，一对多（广播式），多对多（会议式）的实时通话，话音清晰流畅！适用于各种常见开发平台。-V3.6 integrated voice communication control G729A compression algorithm, real-time transport protocol to support one-on-one (point-to-point), one-to-many (broadcast), many-to-many (conference style) real-time calls, voice clear and smooth! Applicable to a variety of common development platform.

intel的IPP包用于语音编码的实例代码-the voice packets for source code examples

IP电视电话会议的实现.

视频会议系统，使用RTP协议。可以实现多人视频语音会议-video conferencing systems, the use of RTP. People can achieve video voice conferencing

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

VOIP电话源程序-source VoIP telephone

在开发sip通话或者h323的时候，都想需要作认证，所以这里给出本人开发的一个很小的digest认证流程的小例子。-call in the development or sip h323 time, and they all want to require certification So I developed here is a very small digest authentication process small examples.

这是voip一个部分,主要是用来做的数据代理,-This is a part of voip is primarily used to do data agents,

Windows Mobile Professional 6 及更高版本上利用SMS自动进行状态回复的程序。还包括了以下演示： 使用SMS拦截； 使用配置文件； 检查Outlook约会信息； 基于定制策略对不同电话号码作出不同反应； 使用SIP； 在Windows移动设备上使用db4； 使用提示； 多语言界面和本地化。-Trombone a utility for automating status reply via SMS on Windows Mobile Professional 6 or later. It also demostrates: How to use SMS interception How to use configuration file How to check Outlook appointment information How to react with different phone number based on custom policy How to deal with SIP How to use db4o on Windows Mobile device How to use notification How to enable multilingual user interface and do localization