<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">8 feb. 2022 kl. 17:51 skrev Alex Balashov <<a href="mailto:abalashov@evaristesys.com" class="">abalashov@evaristesys.com</a>>:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="content-type" content="text/html; charset=utf-8" class=""><div dir="auto" class="">You do not need to purchase a licence to incorporate SEMS into a service platform to sell telephony to customers. You may not, however, sell SEMS per se.<div class=""><br class=""></div></div></div></blockquote>That’s wrong. You may sell GPL-licensed software. But if you changed the code, the GPL forces you to make the source of the code available to your customers under GPL, should they request it.</div><div><br class=""></div><div>There are many boxes out there selling with Asterisk in it, with Asterisk still under GPL.</div><div><br class=""></div><div>Only if you changed SEMS code and want to sell it under a non-GPL commercial license you will need to discuss licensing with the license holders.</div><div><br class=""></div><div>/O<br class=""><blockquote type="cite" class=""><div class=""><div dir="auto" class=""><div class="">That’s the very, very simple version.<br class=""><br class=""><div dir="ltr" class="">—<div class="">Sent from mobile, with due apologies for brevity and errors.</div></div><div dir="ltr" class=""><br class=""><blockquote type="cite" class="">On Feb 8, 2022, at 11:47 AM, Patrick Karton <<a href="mailto:patrickarton@hotmail.com" class="">patrickarton@hotmail.com</a>> wrote:<br class=""><br class=""></blockquote></div><blockquote type="cite" class=""><div dir="ltr" class="">
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Hello im using kamailio and rtpengine to build a custom SBC.</div>
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i was using freeswitch as my b2bua but i noticed a lot of issues when cps and simultaneous increased so i tried sems and i have better results.</div>
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But i do not really understand sems license so i want to know if i can use it.</div>
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i read from sems github</div>
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<pre style="box-sizing:border-box;font-family:ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;font-size:12px;margin-top:0px;margin-bottom:0px;color:rgb(36, 41, 47);background-color:rgb(255, 255, 255)" class="">"It is licensed under dual
license terms, the GPL (v2+) and proprietary license. This
program is released under the GPL with the additional exemption
that compiling, linking, and/or using OpenSSL is allowed.
For a license to use SEMS under non-GPL terms, please contact
FRAFOS GmbH at <a href="mailto:info@frafos.com" class="">info@frafos.com</a>"</pre>
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so my question is if i want to use sems as b2bua with kamailio and rtpengine and make profit of it do i need to purchase a license each time i want to sell it to a customer ? </div>
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Thanks.</div>
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