PJSIP Licensing

Dual-License

PJSIP source code ("The Software") is licensed under both General Public License (GPL) version 2 or later and a proprietary license that can be arranged with us. In practical sense, this means:

• if you are developing Open Source Software (OSS) based on PJSIP, chances are you will be able to use PJSIP freely under GPL. But please double check here for OSS license compatibility with GPL.
• Alternatively, if you are unable to release your application as Open Source Software, you may arrange alternative licensing with us. Just send your inquiry to licensing@teluu.com to discuss this option.

PJSIP may include third party software in its source code distribution. Third Party Software does not comprise part of "The Software". Please make sure that you comply with the licensing term of each software.

 

More Information

Please see the Detailed Licensing Info page for more info about PJSIP Open Source license and the licensing of the Third Party Software.

As mentioned above, please contact licensing@teluu.com for more info about our alternative licensing arrangement.

 

Frequently Asked Questions

Please see licensing related questions in our FAQ or contact licensing@pjsip.org for any questions about PJSIP licensing.