From: "Sarkar, Uttam" <[EMAIL PROTECTED]> 100rel does not make sense in re-INVITE as session is already established. UAS is expected to send final response (2XX/4XX/5XX etc ). It can send 100 trying to stop retransmission of INVITE while it's preparing the final response. It's not recommended for UAS to send 1XX response for the re-INVITE.
One can imagine scenarios where a re-INVITE might not be instantaneous, and so 100rel might be a useful mechanism. For instance, if one endpoint wishes to upgrade an audio call to an audio-and-video call, the other endpoint might want to ask its user before activating the video camera. Dale _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
