Dear All, How can I send a provisional response to an INVITE in-dialog? I can just receive a notification through the `on_call_rx_offer()` call back . If I set the code to non-200, PjSIP seems always response 488 to the other. So please help me. Thanks a lot. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20151027/cfe4ff03/attachment.html>