And we can also respond with 200OK as mentioned in rfc3261 with no change in our sdp.
"If the user is already a member of the session, and the session parameters contained in the session description have not changed, the UAS MAY silently accept the INVITE (that is, send a 2xx response without prompting the user)." On Tue, 24 Sep 2019, 03:17 Kashif Husain, <kashifhusai...@gmail.com> wrote: > You can check for SDP version of re-Invite, if its same as previous one > then its usually intended for session refresh. > > Thanks, > -kashif > > On Tue, 24 Sep 2019, 02:30 Sundbaum Per-Johan (Telenor Sverige AB), < > per-johan.sundb...@telenor.se> wrote: > >> Hi ! >> Can anybody help me find relevant RFC/other info on how UAS should handle >> re-INVITE that is intended as a session refresh and not for modifying the >> session ? >> >> SDP B1 in (3) is identical with SDP B1 in (5) >> >> >> >> Caller Callee >> | | >> | | >> |(1) INVITE with SDP A1 | >> |---------------------------->| >> | | >> | | >> |(2) Trying | >> |<----------------------------| >> | | >> | | >> |(3) 200 OK with SDP B1 | | >> |<----------------------------| >> | | >> | | >> |(4) ACK | >> |---------------------------->| >> | | >> | | >> |(5) (re)INVITE with SDP B1 | >> |<----------------------------| >> | | >> | | >> |(6) 200 OK with SDP ???? | >> |---------------------------->| >> >> >> Thanks ! >> BR/pj >> >> >> >> Sensitivity: Internal >> _______________________________________________ >> Sip-implementors mailing list >> Sip-implementors@lists.cs.columbia.edu >> https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors >> > _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
