AVChat is audio and video chat software based on Flash Communication Server with an easy to use interface. It supports real time audio/video communication with bandwidth control and automatic webcam and microphone detection, enhanced text chat with a language filter and bold/italic/color options, a users list with genre/camera/admin icons, private and public rooms, an admin section with log review and ban/kick by IP, a nick filter, and support for free and premium users. A PHP file is used for configuration options. Flash Communication Server is used for the text/audio/video streams.
DVTS (Digital Video Transport System) sends and receives DV data using the Internet. It consists of dvsend and dvrecv - dvsend receives DV data via IEEE1394, and sends it to dvrecv using IP, while dvrecv receives DV/RTP packets, and sends DV data using an IEEE1394 interface. Using DVTS, high quality realtime video meeting can be achieved. It consumes about 8-35 Mbps of network bandwidth. Supported platforms are FreeBSD4.x, MacOSX, and Linux.
GYach Enhanced is a feature-rich, improved version of the original Gyach. It is the first Yahoo! client for Linux with voice chat capabilities. It offers almost all of the features you would expect to find in the official Windows Yahoo! client. The program offers support for chat, conferences, buddy lists, and My Yahoo content. In addition, Gyach Enhanced offers many features not available in the official Yahoo! clients for Windows, Mac, and Linux. Webcam support is under development and planned for the future. Unlike the original Gyach, GYach Enhanced is designed for Linux only.
Intercom is a flexible voice communication utility for Unix systems. It supports the standard audio compression codecs such as GSM, G.711, and G.72x as well as audio encryption. Intercom was designed mostly for high-speed InterNet connections which are able to provide high quality audio. However, it also works on lower bandwidth connections such as dialup if so configured.
RAT is an RTP audio conferencing and streaming application that allows users to particpate in point-to-point and multi-point audio conferences over the Internet. Developing features include multiple sampling rates, mono/stereo, loss concealment, and IPv4/IPv6 support, and both versions feature encryption and run on a range of platforms.
Skype uses P2P (peer-to-peer) technology to provide voice- and video-based communication with other Internet users. The technology is extremely advanced, but easy to use. It features excellent sound quality, end-to-end encryption, and automatic negotiation of firewalls or routers. Among major features are SkypeOut and SkypeIn, adding the possibility to make low-cost calls to land line phones and having a fixed number to be able to receive calls from land line phones.
SpeexComm is a Speex-based, multi-platform voice communication engine meant mainly for gaming. Written in C99, the engine itself depends only on libc, but ALSA and Speex libraries are recommended for audio input/output and voice encoding/decoding. The engine is accompanied by some reference UIs.