Instant Messaging Overview

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REVLY Instant Messaging Software

Ejabberd is an instant messaging server using the XMPP protocol, which is an open standard created by the Jabber Foundation, (now a part of Cisco Systems).  XMPP uses an open approach, by which anyone may implement an XMPP service and interoperate with other organizations' implementations.  Ejabberd is created by ProcessOne of Paris, France.

REVLY Instant Messaging Protocols

Extensible Messaging and Presence Protocol (XMPP) is a communications protocol based on XML (Extensible Markup Language). The protocol was originally named Jabber and was developed by the Jabber open-source community in 1999 for near real time instant messaging (IM), presence information and contact list maintenance. Designed to be extisible, the protocol has also been used for Publish-subscribe systems, signalling for VoiP, video, file transfer, gaming, Internet of Things (IoT) applications such as the smart grid and social networking services.

Unlike most instant messaging protocols, XMPP is defined in an open standard and uses an open systems approach of development and application, by which anyone may implement an XMPP service and interoperate with other organizations' implementations. Because XMPP is an open protocol, implementations can be developed using any software license; although many server, client, and library implementations are distributed as free and open-source software numerous freeware and commercial software implementations also exist.