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              <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Tlen.pl</span></h1>
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</style><div role="note" class="hatnote navigation-not-searchable">"Tlen" redirects here. For the village, see <a href="Tle%C5%84" title="Tleń">Tleń</a>. <a href="https://en.wiktionary.org/wiki/tlen" class="extiw external" title="wikt:tlen">Tlen</a> is also the Polish word for oxygen.</div>
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</style><table class="infobox vevent"><tbody><tr><th colspan="2" class="infobox-above summary">Tlen.pl</th></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Programmer" title="Programmer">Developer</a></th><td class="infobox-data">Grupa o2 Sp. z o.o.</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Initial release</th><td class="infobox-data">October&nbsp;2001<span style="display: none;">&nbsp;(<span class="bday dtstart published updated itvstart">2001-10</span>)</span></td></tr><tr style="display: none;"><td colspan="2" class="infobox-full-data"></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_release_life_cycle" title="Software release life cycle">Stable release</a></th><td class="infobox-data"><div style="margin:0px;">6.00.3.77
   / January&nbsp;16, 2009<span style="display:none">&nbsp;(<span class="bday dtstart published updated">2009-01-16</span>)</span> (<a href="Windows" class="mw-redirect" title="Windows">Windows</a>)</div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_release_life_cycle#Beta" title="Software release life cycle">Preview release</a></th><td class="infobox-data"><div style="margin:0px;">7.0.1.72
   / February&nbsp;10, 2011<span style="display:none">&nbsp;(<span class="bday dtstart published updated">2011-02-10</span>)</span> (<a href="Windows" class="mw-redirect" title="Windows">Windows</a>, <a href="Linux" title="Linux">Linux</a>, <a href="Mac_OS_X" class="mw-redirect" title="Mac OS X">Mac OS X</a>)</div></td></tr><tr style="display:none"><td colspan="2">
</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Operating_system" title="Operating system">Operating system</a></th><td class="infobox-data"><a href="Microsoft_Windows" title="Microsoft Windows">Microsoft Windows</a>, <a href="Linux" title="Linux">Linux</a>, <a href="Mac_OS_X" class="mw-redirect" title="Mac OS X">Mac OS X</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Available in</th><td class="infobox-data">Polish</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_categories#Categorization_approaches" title="Software categories">Type</a></th><td class="infobox-data">Instant messaging client</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_license" title="Software license">License</a></th><td class="infobox-data"><a href="Freeware" title="Freeware">Freeware</a>/<a href="Adware" title="Adware">Adware</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="http://www.tlen.pl">www<wbr>.tlen<wbr>.pl</a></span></td></tr></tbody></table> 
<p><b>Tlen.pl</b> was an <a href="Adware" title="Adware">adware</a> licensed <a href="Poland" title="Poland">Polish</a> <a href="Instant_messaging" title="Instant messaging">instant messaging</a> service. It was fully compatible with the main Polish <a href="Gadu-Gadu" title="Gadu-Gadu">Gadu-Gadu</a> instant messenger. It was launched in 2001 and discontinued in May 2016.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</p><p>The communication protocol is based on <a href="Open-source_software" title="Open-source software">open-source</a> jabberd code, but it was modified significantly, making it incompatible with generic <a href="Extensible_Messaging_and_Presence_Protocol" class="mw-redirect" title="Extensible Messaging and Presence Protocol">XMPP</a> clients and servers. Among other features, Tlen.pl allows for <a href="Voice_chat" class="mw-redirect" title="Voice chat">voice chats</a>, <a href="Short_message_service" class="mw-redirect" title="Short message service">SMS</a> sending and <a href="Video_teleconference" class="mw-redirect" title="Video teleconference">video conferences</a>. The versions later than 4.0 allow for creation and usage of <a href="Plug-in_(computing)" title="Plug-in (computing)">plugins</a>. Since then more than 130 plugins have been created by the community.
By April 2008 there were more than 1 500 000 registered users and 780 000 real users of Tlen.pl.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</p><p>Tlen is also integrated with the o2.pl mail system, which allows users to use mail in three domains: o2.pl; go2.pl and Tlen.pl. It is possible to easily access the mail system from the application. Tlen.pl automatically checks the user's account and if there is any new mail, it displays a notification on their screen.
</p><p>It is also possible to connect to Tlen.pl from the Tlen.pl homepage with a browser.
</p><p>Since version 6.0.1.7, Tlen has included the Tlenofon <a href="Plug-in_(computing)" title="Plug-in (computing)">plugin</a>, which enables <a href="VoIP" class="mw-redirect" title="VoIP">VoIP</a> functionality for the client. Tlenofon is similar to the <a href="Skype" title="Skype">Skype</a> service and offers low-priced calls to <a href="Poland" title="Poland">Poland</a> and other countries.
</p><p>In the second half of 2009, Tlen 7 Beta was published. There were no longer any advertisements. The popularity of the service has been declining, however. The software has not been updated since 2011, and the server has been shut down on 10 May 2016.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2></div>
<ul><li><a href="Comparison_of_instant_messaging_clients" class="mw-redirect" title="Comparison of instant messaging clients">Comparison of instant messaging clients</a></li></ul>
<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>
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<li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1333433106">
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</style><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="http://pclab.pl/news69582.html">"Komunikator Tlen zakończył swój żywot"</a> (in Polish).</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Komunikator+Tlen+zako%C5%84czy%C5%82+sw%C3%B3j+%C5%BCywot&amp;rft_id=http%3A%2F%2Fpclab.pl%2Fnews69582.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ATlen.pl" class="Z3988"></span></span>
</li>
<li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external autonumber" href="http://audyt.gemius.pl/komunikatory_wyniki.php">[1]</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20080603135531/http://audyt.gemius.pl/komunikatory_wyniki.php">Archived</a> June 3, 2008, at the <a href="Wayback_Machine" title="Wayback Machine">Wayback Machine</a></span>
</li>
<li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="https://www.komputerswiat.pl/nowosci/programy/2016/20/tlen-to-juz-koniec-popularnego-komunikatora.aspx">"Tlen - to już koniec popularnego komunikatora"</a> (in Polish). 9 May 2016.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Tlen+-+to+ju%C5%BC+koniec+popularnego+komunikatora&amp;rft.date=2016-05-09&amp;rft_id=https%3A%2F%2Fwww.komputerswiat.pl%2Fnowosci%2Fprogramy%2F2016%2F20%2Ftlen-to-juz-koniec-popularnego-komunikatora.aspx&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ATlen.pl" class="Z3988"></span></span>
</li>
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<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>
<ul><li><span class="official-website"><span class="url"><a rel="nofollow" class="external text" href="http://mail.tlen.pl">Official website</a></span></span></li>
<li><a rel="nofollow" class="external text" href="https://tleenx.sourceforge.net/">TleenX</a> - open-source GTK+ Tlen.pl client</li></ul></div><!--htdig_noindex--><div><div class="zim-footer">
    This article is issued from <a class="external text" title="Last edited on 2025-11-10" href="https://en.wikipedia.org/wiki/?title=Tlen.pl&amp;oldid=1321412429">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.
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