ejabberd is a distributed, fault-tolerant technology that allows the creation of large-scale instant messaging applications. The server can reliably support thousands of simultaneous users on a single node and has been designed to provide exceptional standards of fault tolerance. As an open source technology, based on industry-standards, ejabberd can be used to build bespoke solutions very cost effectively.

ejabberd - Robust, Scalable and Extensible XMPP Server

Linphone is an internet phone or Voice Over IP phone (VoIP), it helps to communicate freely with people over the internet, with voice, video, and text instant messaging. Linphone is available for Linux, Windows, MacOSX, and for mobile phones: Android, iPhone, Blackberry. It is using SIP protocol and it is compatible with any voip operator using SIP for its network. It provides Liblinphone, a powerful SIP VoIP video SDK that anyone can use to add audio or video call capabilities to an application. It supports IPv6, Webcam, Addressbook and lot more. 
 <img src="/AppImages/Article/linphone-img1.jpg" alt="" class="float-center">

Linphone is an internet phone or Voice Over IP phone (VoIP), it helps to communicate freely with people over the internet, with voice, video, and text instant messaging. Linphone is available for Linux, Windows, MacOSX, and for mobile phones: Android, iPhone, Blackberry. It is using SIP protocol and it is compatible with any voip operator using SIP for its network.

Linphone - Video SIP phone for Desktop and Mobile

MongooseIM is aimed at large, complex enterprise level projects where real-time communication is critical for business success. It provides high availability, ease of deployment, development and reliability in production. MongooseIM can accept client sessions over vanilla XMPP, Websockets, and HTTP long-polling (a.k.a. BOSH).

MongooseIM - Efficient XMPP server

Instantbird is a cross platform instant messaging software. It supports various protocols and using this software you could use Facebook, Twitter, Google talk, IRC chat and lot more.

Instantbird - Instant Messaging

Solanum is an IRCv3 server designed to be highly scalable. It implements IRCv3.1 and some parts of IRCv3.2.

Solanum -  An IRCd for unified networks

qwebirc is a fast, easy to use, free and open source IRC client designed by and originally just for the QuakeNet IRC network. It supports most ircds out of the box, SSL/TLS support for the browser and server, Multiple channels and queries, Scalability via trivial sharding with sticky sessions and lot more.

qwebirc - Fast, easy to use, free and open source web IRC client

Discover open source projects across all platforms

Projects

ejabberd - Robust, Scalable and Extensible XMPP Server

Linphone - Video SIP phone for Desktop and Mobile

MongooseIM - Efficient XMPP server

Instantbird - Instant Messaging

Solanum - An IRCd for unified networks

qwebirc - Fast, easy to use, free and open source web IRC client

TechStack

Tagcloud

Suggested keywords:

Projects

ejabberd - Robust, Scalable and Extensible XMPP Server

Linphone - Video SIP phone for Desktop and Mobile

MongooseIM - Efficient XMPP server

Instantbird - Instant Messaging

Solanum - An IRCd for unified networks

qwebirc - Fast, easy to use, free and open source web IRC client

TechStack

Tagcloud