程序源码 很通用的！！可以借鉴

本文档可以告诉您　如何在libosip的基础上开发即时消息-this document can tell you how libosip development on the basis of instant messaging

G.722语音编码实例化解析VC语言描述!-G.722 speech coding examples of analytic description language VC!

一个简单的关于网络录音机的源代码程序，用visual c++编写-A simple tape recorder on the network the source code of procedure, using visual c++ Prepared

osip的高层扩展，用于开发Voip软件，方便开发。-osip senior extension for the development of Faith software, and facilitate the development.

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.

KPhone is a SIP (Session Initiation Protocol) user agent for Linux, with which you can initiate VoIP (Voice over IP) connections over the Internet. KPhone requires KDE (K Desktop Environment) or at least various libraries from the KDE package. KPhone also requires the OpenSSL libraries to be present in the system. KPhone has been somewhat tested on Red Hat 7.2 and 7.3, Slackware 8.0, SuSE 8.1 and Debian. Requirements on each distribution vary according to the installation layout.

ITU_g723参考代码-ITU_g723 reference code

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

SIP协议实现的软电话功能例子(仅供参考)-SIP protocol implementation example of the soft phone functionality (for reference only)

The Auerswald ETS 4308i ISDN PBX Reverse Engineering Project是一种完全开放式的源客户端软件适用于the Auerswald ETS 4308i ISDN PBX。它的目的是为有效地使用LCR-feature of the PBX 提供工具，为改换PBX的配置，为读取电话数量，为将ISDN-D-channel-protocol of the PBXzuop作为输入源或者isdnlog来使用。-ETS 4308i ISDN PBX Reverse Engineering Project is a completely open-source client software applicable to the George Mason ETS 4308i ISDN PBX. It is designed for the effective use of LCR-feature of the PBX with the tools to change the configuration of PBX, telephone number for readers to be ISDN-D-channel-PBXzuop protocol of the input source or isdnlog to use it.