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Reformat 1 URL (Wayback Medic 2.5)) #IABot (v2.0.9.5) (GreenC bot

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{{NoteTA
|G1=IT
|G2=FL
|1=zh-tw:史特拉斯堡; zh-cn:斯特拉斯堡;
}}
{{Infobox software
| name = Jitsi
| logo = Logo Jitsi.svg
| screenshot = JitsiSchermoInsegnanteManniAlzate.png
| screenshot size = 240px 
| caption =
| author = Emil Ivov
| developer = [[8x8]]
| released = {{Start date and age|2003}}
| programming language = [[Java]]、[[JavaScript]]
| operating system = [[Linux]]、[[macOS]]、[[Windows]], [[Android]]、[[iOS]]
| language = 阿斯圖里亞斯語、英語、法語、德語、保加利亞語、日語、西班牙語、義大利語、羅馬尼亞語、希臘語和其他25種語言
| genre = [[VoIP]]、[[即時通訊]]、[[視訊通話]]
| license = [[Apache许可证]]2.0<ref>{{cite web|url=https://github.com/jitsi/jitsi-meet/blob/master/LICENSE|title=jitsi/jitsi-meet|website=GitHub|access-date=2021-01-24|archive-date=2021-04-30|archive-url=https://web.archive.org/web/20210430015402/https://github.com/jitsi/jitsi-meet/blob/master/LICENSE|dead-url=no}}</ref>
}}

'''Jitsi'''是[[自由及开放源代码软件|自由開源]]的[[跨平臺|跨平台]][[VoIP|語音]]（VoIP）、[[视频对话|視訊會議]]和[[即時通訊]]應用程式，可用於Web平台、[[Microsoft Windows|Windows]]、[[Linux]]、[[MacOS|Mac OS X]]和[[Android]]。Jitsi專案始於Jitsi Desktop（舊稱[[對話啟動協定|SIP]] Communicator）<ref>{{Cite web|title=Archived copy|url=http://lists.jitsi.org/pipermail/dev/2015-June/024439.html|date=|last=|first=|access-date=2015-09-22|archive-url=https://web.archive.org/web/20150622133126/http://lists.jitsi.org/pipermail/dev/2015-June/024439.html|archive-date=2015-06-22|dead-url=yes|website=}}</ref><ref>{{Cite book|url=https://books.google.com/books?id=GtwlDwAAQBAJ&pg=PA250&dq=jitsi&hl=en&sa=X&ved=0ahUKEwja4t3cr63cAhWDjCwKHUxSDXsQ6AEIKzAB#v=onepage&q=jitsi&f=false|title=Computer Networks: 24th International Conference, CN 2017, Lądek Zdrój, Poland, June 20–23, 2017, Proceedings|last=Gaj|first=Piotr|last2=Kwiecień|first2=Andrzej|last3=Sawicki|first3=Michał|date=2017-05-27|publisher=Springer|isbn=9783319597676|language=en}}</ref><ref>{{Cite news|url=https://www.business.com/articles/online-meeting-technologies/|title=Useful Technologies for Hosting Online Meetings|work=business.com|access-date=2018-07-20|archive-date=2020-08-04|archive-url=https://web.archive.org/web/20200804165859/https://www.business.com/articles/online-meeting-technologies/|dead-url=no}}</ref>。隨著[[WebRTC|網頁即時通訊]]（WebRTC）的發展，專案團隊把工作重點移到允許在網頁上進行多方視訊通話的Jitsi Video Bridge。後來，該團隊添加了Jitsi Meet，這是一個完整的視訊會議應用程式，包括了Web、Android和iOS用戶端。Jitsi還負責meet.jit.si的運營，這是由Jitsi託管、專供社群免費使用的Jitsi Meet版本。其他專案還包括：Jigasi、lib-jitsi-meet、Jidesha和Jitsi<ref>{{Cite web|title=SIP Communicator Renamed to Jitsi {{!}} The Kamailio SIP Server Project|url=https://www.kamailio.org/w/2011/03/sip-communicator-renamed-to-jitsi/|language=en-US|website=www.kamailio.org|access-date=2018-08-04|archive-date=2020-04-07|archive-url=https://web.archive.org/web/20200407174137/https://www.kamailio.org/w/2011/03/sip-communicator-renamed-to-jitsi/|dead-url=no}}</ref><ref>{{Cite web|title=Meeting Place » Linux Magazine|url=http://www.linux-magazine.com/Issues/2016/183/Video-Conferencing|last=Jurzik|first=Mela Eckenfels, Heike|language=en-US|website=Linux Magazine|access-date=2018-08-04|archive-date=2020-04-07|archive-url=https://web.archive.org/web/20200407174145/https://www.linux-magazine.com/Issues/2016/183/Video-Conferencing|dead-url=no}}</ref><ref>{{Cite news|url=https://www.linuxlinks.com/jitsi-innovative-open-source-voice-and-video-conferencing/|title=Jitsi - innovative open source voice and video conferencing - LinuxLinks|work=LinuxLinks|access-date=2018-08-06|language=en-GB|archive-date=2020-04-07|archive-url=https://web.archive.org/web/20200407174144/https://www.linuxlinks.com/jitsi-innovative-open-source-voice-and-video-conferencing/|dead-url=no}}</ref>。

Jitsi得到NLnet基金會<ref>{{cite web|title=NLnet; SIP Comm Phone|url=http://nlnet.nl/project/sip-comm/|accessdate=2013-06-08|date=|publisher=Nlnet.nl|archive-date=2020-10-25|archive-url=https://web.archive.org/web/20201025165338/https://nlnet.nl/project/sip-comm/|dead-url=no}}</ref><ref>{{cite web|title=NLnet; SIP Comm Desktop|url=http://nlnet.nl/project/sip-comm2/|accessdate=2013-06-08|date=|publisher=Nlnet.nl|archive-date=2020-12-03|archive-url=https://web.archive.org/web/20201203231213/https://nlnet.nl/project/sip-comm2/|dead-url=no}}</ref>、[[斯特拉斯堡大学|史特拉斯堡大學]]和[[阿尔萨斯|阿爾薩斯]]地區等各種機構的支持<ref>{{cite web|title=La région récompense un jeune informaticien|url=https://www.20minutes.fr/article/167556/Strasbourg-La-region-recompense-un-jeune-informaticien.php|accessdate=2013-06-08|date=2013-05-03|publisher=20minutes.fr|archive-date=2012-03-06|archive-url=https://web.archive.org/web/20120306031005/http://www.20minutes.fr/article/167556/Strasbourg-La-region-recompense-un-jeune-informaticien.php|dead-url=no}}</ref>，並且還多次參與了[[Google夏日程式碼大賽]]。<ref>{{cite web|title=SIP Communicator GSoC'10 home page|url=https://socghop.appspot.com/gsoc/org/home/google/gsoc2010/sipcomm|archiveurl=https://web.archive.org/web/20110728122916/http://socghop.appspot.com/gsoc/org/home/google/gsoc2010/sipcomm|archivedate=2011-07-28|dead-url=yes|accessdate=2020-04-07}}</ref><ref>{{cite web|title=SIP Communicator GSoC'09 home page|url=https://socghop.appspot.com/gsoc/org/home/google/gsoc2009/sipcomm|archiveurl=https://web.archive.org/web/20091214185256/http://socghop.appspot.com/gsoc/org/home/google/gsoc2009/sipcomm|archivedate=2009-12-14|dead-url=yes|accessdate=2020-04-07}}</ref>

== 歷史 ==
Jitsi（時稱SIP Communicator）的相關工作始於2003年，當時是埃米爾·伊沃夫（Emil Ivov）在[[斯特拉斯堡大学|史特拉斯堡大學]]時的學生專案<ref>{{Cite web|title=SIP Communicator: Interview with Emil Ivov|url=https://www.gulli.com/news/sip-communicator-interview-2009-07-15|accessdate=2013-06-08|date=|publisher=Gulli.com|archive-url=https://archive.today/20130126010545/http://www.gulli.com/news/865-sip-communicator-interview-with-emil-ivov-2009-07-15|archive-date=2013-01-26|url-status=dead}}</ref>。最初是以一個視訊電話範例的名義，發布在JAIN-SIP堆棧中，後來分拆出來成為一個獨立專案<ref>{{Cite web|title=Original Jitsi release announcement|url=https://java.net/nonav/projects/jitsi/lists/dev/archive/2003-06/message/1|accessdate=2013-06-08|date=|publisher=Java.net|archive-url=https://web.archive.org/web/20131224092227/https://java.net/nonav/projects/jitsi/lists/dev/archive/2003-06/message/1|archive-date=2013-12-24|dead-url=yes}}</ref>。

2009年，埃米爾·伊沃夫創立了BlueJimp公司，雇用了一些Jitsi主要貢獻者<ref>{{Cite web|title=Jitsi Contributors - Ohloh|url=http://www.ohloh.net/p/SIPCommunicator/contributors|date=2010-03-26|archiveurl=https://web.archive.org/web/20100326144437/http://www.ohloh.net/p/SIPCommunicator/contributors|archivedate=2010-03-26|accessdate=2020-04-07|dead-url=no}}</ref><ref>{{Cite web|title=Jitsi Team and Contributors|url=https://jitsi.org/index.php/Development/TeamAndContributors|accessdate=2013-06-08|date=|publisher=Jitsi.org|archive-date=2017-02-07|archive-url=https://web.archive.org/web/20170207154711/https://jitsi.org/index.php/Development/TeamAndContributors|dead-url=no}}</ref>，以提供與這個專案相關的專業支援和開發服務<ref>{{Cite web|title=Main / Solutions|url=http://bluejimp.com/index.php/Main/Solutions|accessdate=2013-06-08|date=|publisher=BlueJimp|archiveurl=https://web.archive.org/web/20130905121432/http://bluejimp.com/index.php/Main/Solutions|archivedate=2013-09-05|dead-url=yes}}</ref> 。

2011年，本專案在經由XMPP的[[Jingle (协议)|Jingle]]擴充套件成功增加了對音訊和視訊通訊的支援功能後，被重命名為Jitsi，因為它不再是「只有SIP的通訊器」了<ref>{{Cite web|title=About Jitsi|url=https://jitsi.org/index.php/Main/About|accessdate=2013-06-08|date=|publisher=Jitsi.org|archive-date=2016-04-05|archive-url=https://web.archive.org/web/20160405214338/https://jitsi.org/index.php/main/about|dead-url=no}}</ref><ref>{{Cite web|title=Renaming to Jitsi. Step 1: The Site|url=http://java.net/nonav/projects/jitsi/lists/dev/archive/2011-03/message/70|accessdate=2013-06-08|date=|publisher=Java.net|archiveurl=https://web.archive.org/web/20110722110750/http://java.net/nonav/projects/jitsi/lists/dev/archive/2011-03/message/70|archivedate=2011-07-22|dead-url=no}}</ref>。新的名字源於[[保加利亚语|保加利亞語]]的「{{Lang|bg|жици}}」（{{Lang|la|zhitsi}}，電線）<ref>{{Cite web|title=(SIP Communicator) | Documentation / FAQ § How do you spell Jitsi and what does it mean?|url=https://jitsi.org/index.php/Documentation/FAQ#spelling|accessdate=2013-06-08|date=|publisher=Jitsi|archive-date=2016-09-26|archive-url=https://web.archive.org/web/20160926143535/https://jitsi.org/index.php/Documentation/FAQ#spelling|dead-url=no}}</ref>。

Jitsi在2013年推出Video Bridge，使用了新的Selective Forwarding Unit（SFU）架構支援其用戶可以進行多方視訊通話。同年晚稍晚，JitsiVideobridge初步支援可以從瀏覽器調用WebRTC的功能。为了演示如何將JitsiVideobridge當作產品服務，BlueJimp在met.jit.si上用它架設了一個系统，提供免費使用<ref>{{Cite news|url=https://techcrunch.com/2016/08/18/atlassians-hipchat-gets-group-video-chats/|title=Atlassian’s HipChat gets group video chats|work=TechCrunch|accessdate=2018-07-20|language=en-US|archive-date=2020-10-27|archive-url=https://web.archive.org/web/20201027073314/https://techcrunch.com/2016/08/18/atlassians-hipchat-gets-group-video-chats/|dead-url=no}}</ref>。

2014年11月4日，「Jitsi + [[保衛者計畫 (軟體)|Ostel]]」在[[电子前哨基金会|電子前哨基金會]]的安全簡訊評比中，拿下評分卡7分中的6分。他們被扣了一分，是因為沒有最近獨立的程式碼審核<ref>{{Cite web|title=Secure Messaging Scorecard. Which apps and tools actually keep your messages safe?|url=https://www.eff.org/secure-messaging-scorecard|accessdate=2015-01-16|date=2014-11-04|publisher=Electronic Frontier Foundation|archiveurl=https://web.archive.org/web/20161115054343/https://www.eff.org/secure-messaging-scorecard|archivedate=2016-11-15|dead-url=no}}</ref>。

2015年2月1日，Hristo Terezov、Ingo Bauersachs和團隊其他成員在布魯塞爾舉行的2015年[[自由及開源軟件開發者歐洲會議|自由及開源軟體開發者歐洲會議]]中，在他們的臺上發布了 2.6版<ref>{{Cite web|title=Jitsi 2.6 release notice on the Jitsi-users mailing list|url=http://lists.jitsi.org/pipermail/users/2015-February/008562.html|accessdate=2015-02-01|date=|publisher=Jitsi.org|archive-url=https://web.archive.org/web/20150202011640/http://lists.jitsi.org/pipermail/users/2015-February/008562.html|archive-date=2015-02-02|dead-url=yes}}</ref>。此版本包括安全修復程序，將XMPP 及SSLv3中不推薦使用的MSN協議支援移除。除了其他明顯的改善外，OS X版本還綑綁了Java 8運行時，預設啟用回聲消除，並使用CoreAudio子系统。 Linux版本解決了GTK +原生LookAndFeel的字體問題，並修復了使用PulseAudio聲音系統時，通話設定中關於麥克風級別這個長期存在的問題。此版本還添加了嵌入式Java數據庫[[HSQLDB|Hyper SQL数据库]]，以提高具有大量配置檔案的使用者的性能，這個功能預設是關閉的。專案網站上提供了完整的更新列表<ref>{{Cite web|title=Jitsi build 5390 release notes|url=https://download.jitsi.org/jitsi/windows/updates/|accessdate=2015-02-01|date=|publisher=Jitsi.org|archive-url=https://web.archive.org/web/20150202001841/https://download.jitsi.org/jitsi/windows/updates/|archive-date=2015-02-02|dead-url=yes}}</ref>。

[[Atlassian]]於2015年4月5日收購了BlueJimp。收購之後，Atlassian下的新Jitsi團隊將取消了關於Jitsi Desktop專案有意義的新開發工作，同時擴展了Jitsi Videobridge和Jitsi Meet相關專案的工作。Jitsi Desktop專案現在已由開源社群定期捐助來維持。<ref>{{Cite news|url=https://www.zdnet.com/article/atlassian-acquires-video-conferencing-company-blue-jimp/|title=Atlassian acquires video conferencing company Blue Jimp {{!}} ZDNet|author=Spencer|first=Leon|work=ZDNet|accessdate=2018-07-20|language=en|archive-date=2020-10-20|archive-url=https://web.archive.org/web/20201020120445/https://www.zdnet.com/article/atlassian-acquires-video-conferencing-company-blue-jimp/|dead-url=no}}</ref><ref>{{Cite news|url=https://www.pcmag.com/news/347059/atlassian-launches-group-video-conferencing-for-hipchat|title=Atlassian Launches Group Video Conferencing for HipChat|work=PCMAG|accessdate=2018-07-20|language=en|archive-date=2018-07-20|archive-url=https://web.archive.org/web/20180720225937/https://www.pcmag.com/news/347059/atlassian-launches-group-video-conferencing-for-hipchat|dead-url=no}}</ref><ref>{{Cite news|url=https://www.atlassian.com/blog/archives/atlassian-acquires-blue-jimp-jitsi-org|title=Atlassian acquires Blue Jimp & Jitsi.org - Atlassian Blog|date=2015-04-22|work=Atlassian Blog|accessdate=2018-07-21|language=en-US|archive-date=2020-09-29|archive-url=https://web.archive.org/web/20200929145650/https://www.atlassian.com/blog/archives/atlassian-acquires-blue-jimp-jitsi-org|dead-url=no}}</ref>Jitsi則由[[八乘八電子股份|8x8]]全额資助<ref>{{Cite web |url=https://jitsi.org/user-faq/ |title=存档副本 |accessdate=2020-04-07 |archive-date=2020-04-02 |archive-url=https://web.archive.org/web/20200402230725/https://jitsi.org/user-faq/ |dead-url=no }}</ref>。

== 主要專案 ==
[[File:Wellington Wikipedia Meetup 2020-05-09.png|缩略图|使用Jitsi的视频会议]]
[[File:Jitsi-app.png|缩略图|Android版本Jitsi Meet应用]]
在[[GitHub|Github]]上有73個Jitsi開源儲存庫，主要的專案有<ref>{{Cite web|title=Jitsi|url=https://github.com/jitsi|language=en|website=GitHub|access-date=2018-07-21|archive-date=2016-01-31|archive-url=https://web.archive.org/web/20160131073324/https://github.com/jitsi|dead-url=no}}</ref>：

* Jitsi Meet：能快速安裝在Debian/Ubuntu伺服器上的視訊會議服務。
* Jitsi Videobridge：支持多方會議的WebRTC Selective Forwarding Unit引擎。
* Jigasi：伺服端應用程式，可以允許常規SIP用戶端加入Jitsi Videobridge主持的Jit Meet會議。
* lib-jitsi-meet：一種低階的JavaScript API，用於為Jitsi Meet提供客制化的使用者介面。
* Jidesha：供Chrome和Firefox瀏覽器使用的Jitsi Meet擴充套件。
* Jitsi：支援SIP、XMPP / Jabber、AIM / ICQ和IRC等協議的音訊、視訊和聊天通信器。

=== Jitsi Meet ===
這是個開放原始碼的JavaScript WebRTC應用程式，可以用於視訊會議。它與Android、Mac OS X、Windows和Linux相容。一個人可以分享桌面和簡報，同時只需一個連結，就能邀請新成員加入會議。它可以直接在瀏覽器中使用，也可以下載應用程式使用。<ref>{{Cite web|title=How to Create Your Own Video Conference Server using Jitsi Meet on Ubuntu 18.04 LTS|url=https://www.howtoforge.com/tutorial/how-to-create-your-own-video-conference-using-jitsi-meet-on-ubuntu-1804/|accessdate=2018-07-23|work=www.howtoforge.com|language=en-US|archive-date=2020-12-02|archive-url=https://web.archive.org/web/20201202185700/https://www.howtoforge.com/tutorial/how-to-create-your-own-video-conference-using-jitsi-meet-on-ubuntu-1804/|dead-url=no}}</ref><ref>{{Cite news|url=https://voip.review/2018/01/28/top-ten-voip-apps/|title=Top Ten VoIP Apps For Consumers {{!}} VoIP Review|date=2018-01-28|work=VoIP Review|accessdate=2018-07-23|language=en-US|archive-date=2020-09-19|archive-url=https://web.archive.org/web/20200919082455/https://voip.review/2018/01/28/top-ten-voip-apps/|dead-url=no}}</ref>

'''Jitsi Meet的特色'''

* 加密通訊和
* 無需安裝新軟體<ref>{{Cite web|title=Jitsi Meet {{!}} Me and my Shadow|url=https://myshadow.org/resources/jitsi-meet-chrome-and-chromium?locale=en|accessdate=2018-08-06|work=myshadow.org|language=en|archive-date=2020-09-23|archive-url=https://web.archive.org/web/20200923052836/https://myshadow.org/resources/jitsi-meet-chrome-and-chromium?locale=en|dead-url=no}}</ref>

{|
|
|
|}

=== Jitsi Videobridge ===
這是支援WebRTC的視訊會議解决方案，允許多位使用者做視訊通話。它是一個Selective Forwarding Unit（SFU），只會把選定的串流轉發給其他視訊通話中的參與者，因此CPU性能的好壞對於效能就不是那麼關鍵<ref>{{Cite book|url=https://books.google.com/books?id=3wt4CgAAQBAJ&pg=PA350&dq=Jitsi+Videobridge&hl=en&sa=X&ved=0ahUKEwiU6Mnej7LcAhXHFCwKHX5_BdkQ6AEIKzAB#v=onepage&q=Jitsi%20Videobridge&f=false|title=Emerging Research on Networked Multimedia Communication Systems|last=Dimitris|first=Kanellopoulos|date=2015-08-14|publisher=IGI Global|isbn=9781466688513|language=en}}</ref><ref>{{Cite web|title=jitsi/jitsi-videobridge|url=https://github.com/jitsi/jitsi-videobridge|accessdate=2018-07-23|work=GitHub|language=en|archive-date=2021-01-28|archive-url=https://web.archive.org/web/20210128121955/https://github.com/jitsi/jitsi-videobridge|dead-url=no}}</ref>。

=== Jitsi Desktop ===
Jitsi催生了不少姊妹專案，例如Jitsi Video Bridge Selective Forwarding Unit（SFU）和Jitsi Meet。為了避免和其他日益增多的Jitsi專案相混淆，Jitsi用戶端應用程式就更名為'''Jitsi Desktop'''。

最初，此專案因為支援[[IPv6]]，所以主要被當成實驗工具<ref>{{Cite web|title=Optimizing SIP Application Layer Mobility over IPv6 Using Layer 2 Triggers|url=http://emcho.com/mypapers/sip-and-l2-triggers.pdf|accessdate=2013-06-08|author=Ivov|date=2004|first=Emil|format=PDF|publisher=Emcho.com|archive-date=2017-08-10|archive-url=https://web.archive.org/web/20170810101802/http://www.emcho.com/mypapers/sip-and-l2-triggers.pdf|dead-url=no}}</ref><ref>{{Cite web|title=NEMO Basic Support, Multi-Domiciliation et Découverte de Services|url=https://lsiit-cnrs.unistra.fr/rp-fr/index.php/DemoIPv6Nemo|accessdate=2013-06-08|date=|publisher=Lsiit-cnrs.unistra.fr|language=fr|archiveurl=https://web.archive.org/web/20110721023145/https://lsiit-cnrs.unistra.fr/rp-fr/index.php/DemoIPv6Nemo|archivedate=2011-07-21|dead-url=yes}}</ref>。經過數年，隨著該專案聚集了越來越多成員，它還增加了對[[對話啟動協定|SIP]]以外協議的的支持。

'''特色'''
[[File:Confcall.png|缩略图| Mac OS X上的Jitsi電話會議的視窗。 ]]
Jitsi支持多種[[操作系统|作業系統]] ，包括[[Microsoft Windows|Windows]]以及[[类Unix系统|類Unix]]系统，例如Linux， [[MacOS|Mac OS X]]和[[BSD]]。測試版有提供了為Android建立的軟體包<ref>{{Cite web|title=Jitsi (SIP Communicator) Android - Nightly Builds Index|url=https://download.jitsi.org/jitsi/nightly/android/|accessdate=2014-11-15|date=|publisher=Jitsi.org|archive-url=https://web.archive.org/web/20141129035757/https://download.jitsi.org/jitsi/nightly/android/|archive-date=2014-11-29|dead-url=yes}}</ref>，但專案路徑圖上對移植到Android平臺的描述是「暫緩」<ref>{{Cite web|title=Roadmap|url=https://jitsi.org/Development/Roadmap|accessdate=2013-12-17|date=|publisher=Jitsi.org|archive-url=https://web.archive.org/web/20131217221319/https://jitsi.org/Development/Roadmap|archive-date=2013-12-17|dead-url=yes}}</ref>。
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== 參見 ==
*[[即時通訊軟體比較]]
*[[VoIP軟體的比較]]
*[[自由及開放原始碼軟體列表]]
*[[對話啟動協定]]

== 參考文獻 ==
{{reflist|3}}

{{XMPP}}

[[Category:Windows即时通讯客户端]]
[[Category:VoIP軟體]]
[[Category:视频通讯]]
[[Category:綠色軟件]]
[[Category:用Java編程的自由軟體]]
[[Category:自由跨平台軟體]]
[[Category:2003年软件]]

Jitsi - 版本历史

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