RealNetworks公司的HELIX的audio.部分

The Java SIP library

网络电话设置工具-telephone network configuration tool

在开发 VoIP 系统时，主要考虑的一个方面就是连接到模拟电话的接口。设计人员必须了解 PSTN 中存在的电话接口要求，因为它们必须在 VoIP 系统中得到支持。本文将重点介绍连接到标准 POTS 电话的两种最常用接口：Foreign eXchange Subscriber (FXS) 与 Foreign eXchange Office (FXO)。重点说明了设计人员在为 VoIP 小区网关的模拟电话接口提供支持时可能面临的某些挑战。-In the development of VoIP system, one aspect of the main considerations is connected to the analog telephone interface. Designers must understand the existing PSTN telephone interface requirements, because they are in the VoIP system must be supported. This article will focus on the standard POTS telephone connected to the two most commonly used interface: Foreign eXchange Subscriber (FXS) and Foreign eXchange Office (FXO). Focusing on the design staff in the Residential Gateway for VoIP analog telephone interface may provide support to some of the challenges faced.

本程序通过RTC(实时传输协议)实现了一个视频会议系统.-This procedure adopted by RTC (Real-time Transport Protocol) to achieve a video conferencing system.

openh323-v1_15_2-src-tar.gz 才找到的，与大家共享-openh323-v1_15_2-src-tar.gz only found with the U.S. share

一个不错的实时通讯开发开源代码，可用于ip电话/视频会议，希望对大家有用，-A good real-time communication to develop open-source code, can be used for ip phone/video conferencing, in the hope that useful to everybody,

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

rtp relay,SIP中穿越NAT的一种方式，这是源代码，已经在red hat linux 9中调通过-rtp relay, cross SIP NAT a way, this is the source code, in red hat linux 9 emphasized through

H.323规范的一部分，规定的信令部分的控制，是开发H.323不可缺少的文档。-part of the H.323 standard, signaling the part of the control, development of H.323 is an indispensable document.

基于Internet 的视频会议系统，视频采用Xvid压缩、语音采用Gsm6.10-Internet-based video conferencing systems, used Xvid video compression, voice used Gsm6.10