Open Source C++ Conferencing Software

Free teleprompter software for all video creators. Built with ease of use, fast performance, control accuracy, and cross-platform support in mind. QPrompt works with studio teleprompters and tablet teleprompters, cellphones, and webcams. It was also designed for use in video conferences.

Jamulus is for playing, rehearsing, or just jamming with your friends, your band or just anyone you find online. Use your Windows, macOS or Linux machine to connect to Jamulus servers worldwide, for free over a normal broadband connection. Or host your own private server. Jamulus is designed for high quality, low-latency sound, making it easy to play together remotely and in time.

wxMUN is a tool for managing Model United Nations debates. It capacities include, but are not limited to, managing committee members and speakers' lists as well as voting procedures.

The project has moved! Please find current versions at https://www.gnugk.org/ The GNU Gatekeeper (GnuGk) is a full featured H.323 gatekeeper under GPL license. It supports VoIP and videoconferencing and includes Radius and database support and many call routing functions. The project has moved! Please find current versions at https://www.gnugk.org/

WASTE is a mesh-based workgroup tool that allows for encrypted, private communication between distant parties on the internet, independant of local network organization.

Dimdim is an open source web meeting product with features like Application, Desktop and Presentation sharing with A/V streaming and chat. No attendee installation - all features are available through a web browser. Dimdim can be integrated with Moodle.

wxCommunicator is a cross platform SIP softphone written in C++ utilizing customized sipXtapi user agent library and wxWidgets 2.8.9 GUI library. For a list of supported features see http://wxcommunicator.sourceforge.net/features.html .

VoiceChatter is a free, open source, and cross platform voice chat application. It is built for gaming, so it is light weight, yet delivers excellent voice quality over minimal bandwidth and latency. For more, visit http://www.voicechatter.net

An Instand Messenger Client for the msn network. It use the KDE Desktop Environment.

This project develops video conferencing and VoIP applications for Mac OS X. XMeeting is based on the work of the OpenH323 project which provides the libraries for H.323 and SIP support.

Based on the Project: Heat of War game engine (in development). Ideally, users will interact in a 3D world through voice communication, chat windows, and various other means. The engine will be capable of handling FPS, RTS, and MMORPG games.

No-Name Instant Messenger is a secure (strong cryptography), cross platform communications program that supports existing IM networks (AIM, Yahoo, ICQ, etc.).

Program NetPCLinker is designed for networking, ( communication ) between two computers on a " p2p " (point -> point without the use of servers - intermediaries) . To establish a direct connection between two clients in the network - sufficiently that one of the clients had a "real" static IP address or DNS name to a dynamic IP address, so you can take advantage of VPN networks or IPv6 tunneling. Best choice for small nets. Uses TCP protocol. Warning: For good working, you must to start this program under administrator privilege

YaPhone is a Video conferencing and VoIP application for M$Windows. It is H323 and SIP protocol compatibale , based on OpenH323 project (https://sourceforge.net/projects/openh323), written by VC++.

The Anarchist Tool is an Apache module that provides web-based facilitated discussion and consensus decision making.

Anca is a H.323 client for Qt 3.x. It means that it allows communicating (voice/video) with other similar clients over internet, eg. Gnomemeeting. Its design is minimalist and clean; has a support for embedded devices. It is very modular.

Apreta is about sharing information in real-time meetings. It provides desktop sharing, presentation sharing, a shared whiteboard, and audio conferencing.

Open source, graphical client for G*adu-G*adu IM for BeOS

BetaVerse is a Real-Time 3D On-Line Community. It uses the CrystalSpace 3D Engine as well as the VOS network library

Biwoo is an open-source, cross-platform enterprise communication software. Biwoo support enterprise multi-level departments, project group organization structure. Support P2P AV chat, file send, image send, group chat, offline messages, chat logs.

Bombyx is a graphical client for the Secure Internet Live Conferencing (SILC) system from www.silcnet.org. It is intended to be easy to use, and tries to break away from the typical IRC client model.

A C++ framework utilizing Design Patterns for creating Linux and Windows communications applications that contain Dialogic® products. Includes media and network classes (analog, digital, SIP, H323), multithreaded event handling, distributed app support.

Cabal is a C++ framework that provides support for high prestation parallel processing network servers and clients. It doesn't provide a protocol, it just gives you the abstraction of data sending/receiving in real time or priority scheduling.

'Collaborative Abstract Network Object Building Environment' An internet Virtual World building and conference/chat system with extensive scripting support.