Simone, you need to implement custom transport adapter for that. http://www.pjsip.org/pjmedia/docs/html/group__PJMEDIA__TRANSPORT__ADAPTER__SAMPLE.htm https://trac.pjsip.org/repos/wiki/Media_Transport_Adapter We've used that approach and managed to support ed-137 without any issues. Andrey ----- Исходное сообщение ----- От: "Simone Freddio" <simone.freddio@xxxxxxxxxxxxxxx> Кому: "pjsip" <pjsip@xxxxxxxxxxxxxxx> Отправленные: Вторник, 25 Июль 2017 г 17:34:50 Тема: RTP Extension Header I need to use the RTP Extension Header to implement a RadioOverIP gateway using the protocol EUROCAE ED-137, anyone had any experience with the extension header of RTP packets and pjsua/pjsua2 ? BR Simone _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip@xxxxxxxxxxxxxxx http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip@xxxxxxxxxxxxxxx http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org