[SR-Users] SEMS license with kamailio and rtpengine

[Henning Westerholt]

Hello,

regarding selling copies and the source code fee, the quite extensive GPLv2 FAQ covers it extensively:
https://www.gnu.org/licenses/old-licenses/gpl-2.0-faq.html#DoesTheGPLAllowDownloadFee

Nobody than the buyer could request the source code, but each buyer can of course distribute the source code freely:

https://www.gnu.org/licenses/old-licenses/gpl-2.0-faq.html#DoesTheGPLRequireAvailabilityToPublic

Cheers,

Henning

--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>

From: sr-users <sr-users-bounces at lists.kamailio.org> On Behalf Of Daniel-Constantin Mierla
Sent: Wednesday, February 9, 2022 8:09 AM
To: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>; Patrick Karton <patrickarton at hotmail.com>
Subject: Re: [SR-Users] SEMS license with kamailio and rtpengine


GPL software can be sold without problems, there is no restriction on selling it, but the buyer can request the source code and it has to be provided (afaik, source code delivery could also have a price, but not exceeding the value of the binary form -- this remark must be validated with a lawyer). Nobody else than the buyer has the rights to request the source code.

Cheers,
Daniel
On 08.02.22 21:36, Patrick Karton wrote:
Thanks again Alex :). I will make further read about FOSS licensing.

Using open source at large scale is relatively new for us.

We have Law department so WE will discuss in more details about it.

Thanks again.

Le 8 févr. 2022 20:57, Alex Balashov <abalashov at evaristesys.com><mailto:abalashov at evaristesys.com> a écrit :

Then you should not have any problem using SEMS as an input into commercial services. :-) As a general rule, open-source licensing is not concerned with _how_ you can use the software, only how you distribute it and/or any modifications you make to it. Think, for example, about something like Linux, which you are likely also using. You are free to use Linux to make money.

However, it is surprising that you are not familiar with the GPL (GNU General Public Licence), since it is all but ubiquitous and probably the most popular open-source licence out there. I would take the time to research it, get familiar with its basic premises, and, of course, consult a lawyer if you have any truly esoteric questions.

— Alex

> On Feb 8, 2022, at 2:50 PM, Patrick Karton <patrickarton at hotmail.com><mailto:patrickarton at hotmail.com> wrote:
>
> Thanks for explanation Alex.
>
> Im a service provider.
>
> Le 8 févr. 2022 20:14, Alex Balashov <abalashov at evaristesys.com><mailto:abalashov at evaristesys.com> a écrit :
> You can Google the meaning of “per se” for a richer explanation, but it means “as such” or “the thing itself”. :-)
>
> “Per se” in this context means that you cannot sell SEMS as a _software_ product, because it is free software.
>
> Are you a service provider, or are you in the business of selling software for service providers?
>
> > On Feb 8, 2022, at 12:37 PM, Patrick Karton <patrickarton at hotmail.com><mailto:patrickarton at hotmail.com> wrote:
> >
> > Hi Alex,
> >
> > Thank you very much for the response.
> >
> > i did not understand your last phrase "You may not, however, sell SEMS per se". what is per se ?
> >
> > as i said i only want to use the sems sbc module and eventually annoucement and ivr module. but thats all the functionnality i want from sems.
> >
>
> --
> Alex Balashov | Principal | Evariste Systems LLC
>
> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
> __________________________________________________________
> Kamailio - Users Mailing List - Non Commercial Discussions
>   * sr-users at lists.kamailio.org<mailto:sr-users at lists.kamailio.org>
> Important: keep the mailing list in the recipients, do not reply only to the sender!
> Edit mailing list options or unsubscribe:
>   * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
>
> __________________________________________________________
> Kamailio - Users Mailing List - Non Commercial Discussions
>  * sr-users at lists.kamailio.org<mailto:sr-users at lists.kamailio.org>
> Important: keep the mailing list in the recipients, do not reply only to the sender!
> Edit mailing list options or unsubscribe:
>  * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

--
Alex Balashov | Principal | Evariste Systems LLC

Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
  * sr-users at lists.kamailio.org<mailto:sr-users at lists.kamailio.org>
Important: keep the mailing list in the recipients, do not reply only to the sender!
Edit mailing list options or unsubscribe:
  * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users




__________________________________________________________

Kamailio - Users Mailing List - Non Commercial Discussions

  * sr-users at lists.kamailio.org<mailto:sr-users at lists.kamailio.org>

Important: keep the mailing list in the recipients, do not reply only to the sender!

Edit mailing list options or unsubscribe:

  * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

--

Daniel-Constantin Mierla -- www.asipto.com<http://www.asipto.com>

www.twitter.com/miconda<http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda<http://www.linkedin.com/in/miconda>

Kamailio Advanced Training - Online

  Feb 21-24, 2022 (America Timezone)

  * https://www.asipto.com/sw/kamailio-advanced-training-online/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20220209/87ad1538/attachment.htm>