Hey there, the PJSUA call API provides a callback "on_call_rx_reinvite" to receive notifications about incoming re-INVITE/UPDATE requests. In the callback, the user can set an "async" flag to indicate, that they want to answer the re-INVITE themselves at a later time. To doc says that in this case, the user must use pjsua_call_answer_with_sdp() for answering the re-INVITE and provide an SDP along with it. My question now is: Is there a way to answer a re-INVITE asynchronously and not care about the SDP but have PJSUA generate it automatically like it would when the async flag is not set? Here's my problem: - A re-INVITE comes in and contains a multipart body (possibly including SDP and some other content) - In case of a re-INVITE with multipart body:   -- Set the async flag   -- Inform the application asynchronously about the re-INVITE,      so that it has a chance to look at the multipart content and respond to it (possibly with a multipart body as well).      Here, the application only cares about the additional content and not the SDP. Best Regards, Andreas

On 07.05.20 11:22, Andreas Wehrmann wrote: > Hey there, > > the PJSUA call API provides a callback "on_call_rx_reinvite" to > receive notifications > about incoming re-INVITE/UPDATE requests. Correction: the callback is only called for re-INVITEs of course.