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[Linphone-users] Question on linphone licensing


From: Simon Fang
Subject: [Linphone-users] Question on linphone licensing
Date: Tue, 24 Dec 2013 20:40:46 -0500

Hi experts,

I'm confused about linphone licensing.

According to the linphone website, Linphone, liblinphone, mediastreamer2 are 
provided under the GNU GPL v2 license.

But the sip stack belle-sip code is using GPL v3, which is the default sip 
stack of linphone 3.6 now. 

So it makes me confused, why linphone is GPL v2. Because according to GNU, 
http://www.gnu.org/licenses/gpl-faq.html#v3HowToUpgrade

If a library is released under the GPL (not the LGPL), does that mean that any 
software which uses it has to be under the GPL or a GPL-compatible license? 
(#IfLibraryIsGPL)
Yes, because the software as it is actually run includes the library.


It looks if use belle-sip, linphone should be GPL v3.
Who can help give a clarify?


Thanks,



Simon                                     


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