So can I use UPDATE to modify all the SDP dialog including the "c=" field on a call that has not been ACK'ed.
In particular I am thinking about UA-->softswitch-->Media Server sequence which plays an announcement/collect a new DN from the UA forwards this info to the softswitch ( in an application specific way ) who then sends out an INVITE to the collected DN and UPDATES the initial UA with this dialog information in order to connect the call. The initial UA would be in an early media type state in effect waiting for the UPDATE from the softswitch. Make sense ? John -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brett Tate Sent: Friday, May 20, 2005 12:22 PM To: 'Paul Kyzivat' Cc: [email protected] Subject: RE: [Sip-implementors] UPDATE or INVITE Replaces. > > UPDATE can basically be used to > > "update" everything a re-INVITE can "update". > > This includes SDP changes which comply > > with RFC3264. > > Not "everything". The UPDATE can't change the > Contact address for the sip dialog. According to Jonathan's posting, UPDATE can be used to "update" the Contact. Additionally the Contact is mandatory within UPDATE. http://www1.ietf.org/mail-archive/web/sip/current/msg09391.html _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
