Jitsi

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Jitsi
Logo Jitsi.svg
JitsiSchermoInsegnanteManniAlzate.png
Original author(s)Emil Ivov
Initial release2003; 17 years ago (2003)
Repository Edit this at Wikidata
Written inJava
Operating systemLinux, macOS, Windows (all Java supported), Android, iOS
Size52.4 MB – Windows (bundles its own private JRE)[1]
78.8 MB – Mac OS X (includes private JRE)[2]
22 MB – Linux
65 MB – source code[3]
Available inAsturian, English, French, German, Bulgarian, Japanese, Spanish, Italian, Romanian, Greek and 25 more
TypeVoice over IP, instant messaging, videoconferencing
LicenseApache License 2.0[4]
Websitejitsi.org

Jitsi is a group of free and open-source voice (VoIP), videoconferencing and instant messaging for many platforms, like the web platform, Windows, Linux, macOS, iOS and Android.[5][6][7][8] The Jitsi project started with Jitsi Desktop (previously known as SIP Communicator). With the growth of WebRTC, the Jitsi team decided to focus on Jitsi Videobridge for doing web-based video calling for multiple people. Later the team added Jitsi Meet, a full video conferencing application that includes web, Android, and iOS clients. Jitsi also operates meet.jit.si, a version of Jitsi Meet hosted by Jitsi for free to be used by the community. Other projects are: Jigasi, lib-jitsi-meet, Jidesha, and Jitsi.[9][10][11]

Jitsi is supportefd by various institutions such as the NLnet Foundation,[12][13] the University of Strasbourg and the Region of Alsace[14] and it has participated multiple times on Google Summer of Code program.[15][16]

History[change | change source]

Work on Jitsi (then SIP Communicator) started in 2003as a student project by Emil Ivov at the University of Strasbourg.[17] It was released as an example video phone in the JAIN-SIP stack and later became an independent project.[18]

In 2009, Emil Ivov founded the BlueJimp company which has employed some of Jitsi's main contributors[19][20] in order to offer professional support and development services[21] related to the project.

In 2011, after successfully adding support for audio and video communication over XMPP's Jingle extensions, the project was renamed to Jitsi since it was no longer "a SIP only Communicator".[22][23] This name originates from the Bulgarian "жици" (wires).[24]

Jitsi introduced the Videobridge in 2013 to support video calling with multiple people using a new Selective Forwarding Unit (SFU) architecture. Later that year initial support was added to the JitsiVideobridge allowing WebRTC calling from the browser. To demonstrate how JitsiVideobridge could be used as a production service, BlueJimp offered a free use of its hosted system at meet.jit.si.[25]

On November 4, 2014, "Jitsi + Ostel" scored 6 out of 7 points on the Electronic Frontier Foundation's secure messaging scorecard. They lost a point because there has not been a recent independent code check by people outside jitsi .[26]

On February 1, 2015, Hristo Terezov, Ingo Bauersachs and the rest of the team released[27] version 2.6 from their stand at the Free and Open Source Software Developers' European Meeting 2015 event in Brussels. This release includes security fixes, removes support of the deprecated MSN protocol, along with SSLv3 in XMPP. Among other improvements, the OS X version has aa Java 8 runtime inside, enables echo cancelling by default, and uses the CoreAudio subsystem. The Linux build fixes font issues with the GTK+ native LookAndFeel, and fixes someissues about microphone volume level on call starting when using the PulseAudio sound system. A full list of changes is[28] available on the project web site.

Atlassian bought BlueJimp on April 5, 2015. After that, the new Jitsi team under Atlassian stopped important new development work on the Jitsi Desktop project and expanded its efforts on projects related to the Jitsi Videobridge and Jitsi Meet. Regular contributions from the open source community have maintained the Jitsi Desktop project.[29][30][31] Jitsi is fully funded by 8x8.

Primary projects of Jitsi[change | change source]

The Jitsi open source repository on GitHub currently contains 103 repositories. The major projects include:[32]

Jitsi Meet
Video conferencing server designed for quick installation on Debian/Ubuntu servers.
Jitsi Videobridge
WebRTC Selective Forwarding Unit engine for powering multi-party conferences.
Jigasi
Server-side application that links allows regular SIP clients to join Jitsi Meet conferences hosted by Jitsi Videobridge.
lib-jitsi-meet
Low-level JavaScript API for providing a customized UI for Jitsi Meet.
Jidesha
Chrome extension for Jitsi Meet.
Jitsi
Audio, video, and chat communicator that supports protocols such as SIP, XMPP/Jabber, AIM/ICQ, and IRC.

Jitsi Meet[change | change source]

Jitsi Meet Android Application

Jitsi Meet is an open source JavaScript WebRTC application and can be used for videoconferencing. One can share presentations and with just a link can invite new members for videoconference. It can be used by downloading the app or directly in a browser and is compatible with any recent browser.[33][34] Every user can use Jitsi.org servers or can download and install the server software on a Linux-based machine.

Key features of Jitsi Meet

  • Encrypted communication (secure communication): As of April 2020, 1-1 calls use the P2P mode, which is end-to-end encrypted via DTLS-SRTP between the two participants.[35] Group calls also use DTLS-SRTP encryption, but deppend on the Jitsi Videobridge (JVB) as video router, where packets are decrypted temporarily. The Jitsi team says that "they are never stored to any persistent storage and only live in memory while being routed to other participants in the meeting", and that this measure is necessary due to current limitations of the underlying WebRTC technology.
  • No need of new client software installation.[36]

References[change | change source]

  1. "Index of /jitsi/windows". Download.jitsi.org. Retrieved 2015-02-01.
  2. "Index of /jitsi/macosx". Download.jitsi.org. Retrieved 2015-02-01.
  3. "Index of /jitsi/src". Download.jitsi.org. Retrieved 2015-02-01.
  4. "jitsi/jitsi". GitHub. Retrieved 16 April 2018.
  5. "Archived copy". Archived from the original on 2015-06-22. Retrieved 2015-09-22.CS1 maint: archived copy as title (link)
  6. Gaj, Piotr; Kwiecień, Andrzej; Sawicki, Michał (2017-05-27). Computer Networks: 24th International Conference, CN 2017, Lądek Zdrój, Poland, June 20–23, 2017, Proceedings. Springer. ISBN 9783319597676.
  7. "Useful Technologies for Hosting Online Meetings". business.com. Retrieved 2018-07-20.
  8. "Jitsi.org - develop and deploy full-featured video conferencing". Jitsi. Retrieved 2020-04-17.
  9. "SIP Communicator Renamed to Jitsi | The Kamailio SIP Server Project". www.kamailio.org. Retrieved 2018-08-04.
  10. Jurzik, Mela Eckenfels, Heike. "Meeting Place » Linux Magazine". Linux Magazine. Retrieved 2018-08-04.
  11. "Jitsi - innovative open source voice and video conferencing - LinuxLinks". LinuxLinks. Retrieved 2018-08-06.
  12. "NLnet; SIP Comm Phone". Nlnet.nl. Retrieved 2013-06-08.
  13. "NLnet; SIP Comm Desktop". Nlnet.nl. Retrieved 2013-06-08.
  14. "La région récompense un jeune informaticien". 20minutes.fr. May 3, 2013. Retrieved 2013-06-08.
  15. "SIP Communicator GSoC'10 home page". Archived from the original on July 28, 2011.
  16. "SIP Communicator GSoC'09 home page". Archived from the original on December 14, 2009.
  17. "SIP Communicator: Interview with Emil Ivov". Gulli.com. Retrieved 2013-06-08.
  18. "Original Jitsi release announcement". Java.net. Archived from the original on 2013-12-24. Retrieved 2013-06-08.
  19. "Jitsi Contributors - Ohloh". March 26, 2010. Archived from the original on March 26, 2010.
  20. "Jitsi Team and Contributors". Jitsi.org. Retrieved 2013-06-08.
  21. "Main / Solutions". BlueJimp. Archived from the original on 2013-09-05. Retrieved 2013-06-08.
  22. "About Jitsi". Jitsi.org. Retrieved 2013-06-08.
  23. "Renaming to Jitsi. Step 1: The Site". Java.net. Archived from the original on 2011-07-22. Retrieved 2013-06-08.
  24. "How do you spell Jitsi and what does it mean?". Jitsi. Retrieved 2020-08-11.
  25. "Atlassian's HipChat gets group video chats". TechCrunch. Retrieved 2018-07-20.
  26. "Secure Messaging Scorecard. Which apps and tools actually keep your messages safe?". Electronic Frontier Foundation. 2014-11-04. Archived from the original on 2016-11-15. Retrieved 2015-01-16.
  27. "Jitsi 2.6 release notice on the Jitsi-users mailing list". Jitsi.org. Archived from the original on 2015-02-02. Retrieved 2015-02-01.
  28. "Jitsi build 5390 release notes". Jitsi.org. Retrieved 2015-02-01.
  29. Spencer, Leon. "Atlassian acquires video conferencing company Blue Jimp | ZDNet". ZDNet. Retrieved 2018-07-20.
  30. "Atlassian Launches Group Video Conferencing for HipChat". PCMAG. Retrieved 2018-07-20.
  31. "Atlassian acquires Blue Jimp & Jitsi.org - Atlassian Blog". Atlassian Blog. 2015-04-22. Retrieved 2018-07-21.
  32. "Jitsi". GitHub. Retrieved 2018-07-21.
  33. "How to Create Your Own Video Conference Server using Jitsi Meet on Ubuntu 18.04 LTS". www.howtoforge.com. Retrieved 2018-07-23.
  34. "Top Ten VoIP Apps For Consumers | VoIP Review". VoIP Review. 2018-01-28. Retrieved 2018-07-23.
  35. "Jitsi Meet Security & Privacy". Jitsi. Retrieved 2020-04-27.
  36. "Jitsi Meet | Me and my Shadow". myshadow.org. Retrieved 2018-08-06.

Other websites[change | change source]