Hello,
as stated in the documentation, and on top of every source file, SEMS is
licensed under the GPL version 2 or, at your option, any later version
of the GPL. For more information see doc/COPYING (below).
If you are using software which is published under the GPL, you are
licensed to use it subject to the conditions of the GPL. See
http://www.gnu.org/licenses/gpl.html . Due to the fact that Tekelec now
owns big portions of the copyright for both SEMS and Kamailio code it is
highly unlikely that you will be able to obtain rights to use the
software under a different license. Having said that, the GPL allows you
to do a lot of things - but for example you need to provide your
customers with the full source code.
Regards
Stefan Sayer
from doc/COPYING:
IMPORTANT NOTES
1) The GPL applies to this copy of SIP Express Media Server (SEMS).
For a license to use the SEMS software under conditions
other than those described here, or to purchase support for this
software, please contact iptel.org by e-mail at the following addresses:
info at iptel.org
(see http://www.gnu.org/copyleft/gpl-faq.html#TOCHeardOtherLicense
for an explanation how parallel licenses comply with GPL)
2) SEMS software allows programmers to plug-in external modules to the
core part. Note that GPL mandates all plug-ins developed for the
SEMS software released under GPL license to be GPL-ed or use a GPL
compatible free software license.
(see http://www.gnu.org/copyleft/gpl-faq.html#GPLAndPlugins
for a detailed explanation)
3) Note that the GPL below is copyrighted by the Free Software Foundation,
but the SEMS software is copyrighted by FhG, iptego GmbH and portions by
its contributors.
-------------------------------------------------------------------------
GNU Licence FAQ
This FAQ provides answers to most frequently asked questions. To fully
understand implications of the GNU license, read it.
- you can run SEMS for any purpose
- you can redistribute it as long as you include source code and
license conditions with the distribution
- you cannot release programs derived from SEMS without releasing
their source code
-------------------------------------------------------------------------
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
...
o Kavita Rai [02/03/09 07:28]:
> Hi,
> We also want to use SEMS in our product. The SEMS home page does not provide any information on the license of SEMS.
> Any idea on the license under which SEMS would be available. Is it under GNU GPL/ other open source license/ commercial license.
>
> If SEMS is available under the GPL license, then would Kamailio be compatible with SEMS to provide announcement services.
>
> Any information on SEMS would help a lot.
>
> Regards,
> Kavita
> -----Original Message-----
> From: Klaus Darilion [mailto:klaus.mailinglists at pernau.at]
> Sent: Monday, February 02, 2009 7:59 PM
> To: Henning Westerholt
> Cc: devel at lists.kamailio.org; Kavita Rai
> Subject: Re: [Kamailio-Devel] Kamailio for commerical use
>
>
>
> Henning Westerholt schrieb:
>> On Monday 02 February 2009, Kavita Rai wrote:
>>> Thanks for the reply. As per my understanding, the GPL license does not
>>> permit the use of software under it for commercial use. Is there any
>>> commercial license for Kamailio? If yes, can you please let me know its
>>> terms and conditions. If not, how can I use Kamailio for my commercial use?
>> Hi Kavita,
>>
>> you can use kamailio to provide services for your customers in a commercial
>> setting. For example when you're an ISP to provide telephony services on your
>> infrastructure. But when you distribute (sell) binaries of kamailio, e.g. in
>> some hardware boxes, then you must also provide the source code to generate
>> that binaries.
>>
>> More informations can be found at: http://www.gnu.org/licenses/gpl-faq.html
>>
>> There is no single entity that can sell you a commercial licence for kamailio.
>
> Nevertheless you can sell Kamailio based solutions to your customers.
> (Actually you will charge them for service, setup, configuration ...).
> This is what many people do.
>
> regards
> klaus
>
>
>
>
> _______________________________________________
> Kamailio (OpenSER) - Devel mailing list
> Devel at lists.kamailio.org
> http://lists.kamailio.org/cgi-bin/mailman/listinfo/devel
> http://lists.openser-project.org/cgi-bin/mailman/listinfo/devel
--
Stefan Sayer
VoIP Services
stefan.sayer at iptego.com
www.iptego.com
IPTEGO GmbH
Am Borsigturm 40
13507 Berlin
Germany
Amtsgericht Charlottenburg, HRB 101010
Geschaeftsfuehrer: Alexander Hoffmann