Jam is an open source alternative to Clubhouse, Twitter Spaces and similar audio spaces. With Jam you can create audio rooms that can be used for panel discussions, jam sessions, free flowing conversations, debates, theatre plays, musicals and more. The only limit is your imagination.

Jam - Clubhouse for mini conferences, friends, communities

Openmeetings provides video conferencing, instant messaging, white board, collaborative document editing and other groupware tools using API functions of the Red5 Streaming Server for Remoting and Streaming. Meeting can be recorded and screen sharing support is also available. 
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Its feature include Private message center, User and room management, Multi-Whiteboard and Chat, User permission and Moderating System, Polls and Votes, Backup and lot more.

Openmeetings provides video conferencing, instant messaging, white board, collaborative document editing and other groupware tools using API functions of the Red5 Streaming Server for Remoting and Streaming. Meeting can be recorded and screen sharing support is also available. 

Openmeetings - Open Source Web Conferencing

Jitsi Videobridge is an XMPP server component that allows for multiuser video communication. Unlike the expensive dedicated hardware videobridges, Jitsi Videobridge does not mix the video channels into a composite video stream, but only relays the received video channels to all call participants. Therefore, while it does need to run on a server with good network bandwidth, CPU horsepower is not that critical for performance.

Jitsi Videobridge - WebRTC compatible video router or SFU that lets build highly scalable video conferencing infrastructure

Hubl.in is a free and open source video conference solution built with love and designed with ethics in mind. It's the best way to initiate a communication anywhere with anybody and brings real time conversation to the next level. Hubl.in allows free communication without additional plugins.

Hublin - An easy and free video conference service

Element is a messaging app that lets you chat securely with your family and friends. The communication is default end-to-end encrypted, cross-signed device verification and decentralisation to choose who you trust with your data. Element is unique. You own your data and decide where it lives. Element lets you talk securely to anyone, regardless of their app. It supports unlimited voice, video and messaging. It is built on Matrix.

Element - Secure and independent communication, connected via Matrix

ION is a distributed real-time communication system, let people communicate anydevice, anytime, anywhere. RTC Public PAAS/SAAS are expensive and limited flexibility. Real Destributed RTC System is not easy. Many Public PAAS/SAAS based on destributed architecture with microservices. This is not a simple cluster architecture. ION make all things easy, from front-end to back-end, will support all platforms, all scene, all protocol.
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<ul><li>Real Distributed RTC Architecture with microservices</li><li>Modern, full-platforms SDKs/APPs: Flutter, JS, GO, Swift etc.</li><li>High performance, continuous optimization</li><li>Full WEBRTC stacks: NACK/PLI/TWCC/REMB/RR/SR/Simulcast</li><li>Advanced features: Speaker-Detection, Simulcast, Selective-Subscription</li></ul>

ION is a distributed real-time communication system, let people communicate anydevice, anytime, anywhere. RTC Public PAAS/SAAS are expensive and limited flexibility. Real Destributed RTC System is not easy. Many Public PAAS/SAAS based on destributed architecture with microservices. This is not a simple cluster architecture. ION make all things easy, from front-end to back-end, will support all platforms, all scene, all protocol.

ION -  Distributed real-time communication system, let people communicate anydevice, anytime, anywhere

COD is the Conference Organizing Distribution, used for building conference and event sites online. COD is built on Drupal. It helps to sell tickets or event registration, Full e-commerce is included.

Conference Organizing Distribution builts Conference and Event sites

BigBlueButton is an open source web conferencing system for distance education. 

It supports sharing of slides (PDF and any document readable by OpenOffice), webcams, whiteboard, chat, voice over IP (using FreeSWITCH), and presenter's desktop. It can record and playback sessions (slides, audio, and chat), runs on Mac, Unix, and PC computers, and is supported by a community of developers that care about good design and a streamlined user experience. 

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The use cases for BigBlueButton are One-to-one on-line tutoring, Small group collaboration, 
On-line classes (25 or less)


BigBlueButton is an open source web conferencing system for distance education. It supports sharing of slides (PDF and any document readable by OpenOffice), webcams, whiteboard, chat, voice over IP (using FreeSWITCH), and presenter's desktop. It can record and playback sessions (slides, audio, and chat), runs on Mac, Unix, and PC computers, and is supported by a community of developers that care about good design and a streamlined user experience. 



Bigbluebutton - Open Source Web Conferencing

Jami is free software for universal communication which respects freedoms and privacy of its users. Its main goal is to provide a communication framework and end-user
applications to make audio or video calls, video conferencing, send text messages and make generic data transfers. It makes this possible via multiple paradigms: a modern decentralized approach using a DHT to find peers or classical centralized SIP as a soft-phone. The domain of usage is not limited to physical users, it also includes integration with connected objects (IoT).

Jami - Universal communication which respects
freedoms and privacy of its users

<div class="mt-2 h4">Alf.io is a free and open source event attendance management system, developed for event organizers who care about privacy, security and fair pricing policy for their customers. It features an ecosystem of tools to cover the lifecycle of an event from ticket distribution, to event management, to reporting.</div>
<div class="mt-2 h4">&nbsp;</div>
<div class="mt-2 h4">The GUI is currently available in Italian, English, Spanish, German, Dutch, French, Turkish, Romanian and Portuguese. It supports <a href="https://stripe.com/" target="_blank" rel="noopener">Stripe</a> and <a href="https://mollie.com" target="_blank" rel="noopener">Mollie</a> as gateways for payments done by credit card.</div>

Alf.io is a free and open source event attendance management system, developed for event organizers who care about privacy, security and fair pricing policy for their customers.

Alf.io - The open source ticket reservation system

WebHuddle overcomes many of the common challenges faced by other virtual meeting applications on the market -- such as high-price to entry, compromised network security, large client downloads, and unreliability -- resulting in a frustrated IT department and less than satisfactory business results. 


WebHuddle - Simple Web Conferencing

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.

dimdim - Web Meeting

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