mirror of https://github.com/asterisk/asterisk
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6794 65c4cc65-6c06-0410-ace0-fbb531ad65f31.2-netsec
Kevin P. Fleming
20 years ago
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Asterisk is distributed under the GNU General Public License version 2
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and is also available under alternative licenses negotiated directly
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with Digium, Inc. If you obtained Asterisk under the GPL, then the GPL
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applies to all loadable Asterisk modules used on your system as well,
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except as defined below. The GPL (version 2) is included in this
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source tree in the file COPYING.
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Digium, Inc. (formerly Linux Support Services) holds copyright
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and/or sufficient licenses to all components of the Asterisk
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package, and therefore can grant, at its sole discretion, the ability
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for companies, individuals, or organizations to create proprietary or
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Open Source (even if not GPL) modules which may be dynamically linked at
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runtime with the portions of Asterisk which fall under our
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copyright/license umbrella, or are distributed under more flexible
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licenses than GPL.
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If you wish to use our code in other GPL programs, don't worry --
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there is no requirement that you provide the same exception in your
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GPL'd products (although if you've written a module for Asterisk we
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would strongly encourage you to make the same exception that we do).
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Specific permission is also granted to link Asterisk with OpenSSL and
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OpenH323.
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In addition, Asterisk implements two management/control protocols: the
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Asterisk Manager Interface (AMI) and the Asterisk Gateway Interface
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(AGI). It is our belief that applications using these protocols to
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manage or control an Asterisk instance do not have to be licensed
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under the GPL or a compatible license, as we believe these protocols
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do not create a 'derivative work' as referred to in the GPL. However,
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should any court or other judiciary body find that these protocols do
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fall under the terms of the GPL, then we hereby grant you a license to
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use these protocols in combination with Asterisk in external
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applications licensed under any license you wish.
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The 'Asterisk' name and logos are trademarks owned by Digium, Inc.,
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and use of them is subject to our trademark licensing policies. If you
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wish to use these trademarks for purposes other than simple
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redistribution of Asterisk source code obtained from Digium, you
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should contact our licensing department to determine the necessary
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steps you must take.
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If you have any questions regarding our licensing policy, please
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contact us:
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+1.877.546.8963 (via telephone in the USA)
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+1.256.428.6000 (via telephone outside the USA)
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+1.256.864.0464 (via FAX inside or outside the USA)
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IAX2/misery.digium.com/6000 (via IAX2)
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licensing@digium.com (via email)
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Digium, Inc.
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150 West Park Loop
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Suite 100
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Huntsville, AL 35806
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USA
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