The rules for re-INVITE are the same as for INVITE. The only difference is that the re-INVITE is a request within a dialog (i.e. it has from and to tags). Rules for the transaction layer and the TU are the same for a dialog initiating INVITE and an INVITE within a dialog.
cheers, (-:bob Robert F. Penfield Chief Software Architect Acme Packet, Inc. 130 New Boston Street Woburn, MA 01801 [EMAIL PROTECTED] ----- Original Message ----- From: "Peter Päppinghaus" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, January 01, 2003 1:51 PM Subject: Repost: [Sip-implementors] End-to-end retransmissions for re-INVITE? > I have posted this before, but it seems to have gone > unnoticed (apologies, if this has been asked before). > > I have searched through RFC 3261 to find out whether > 2xx responses to re-INVITE and ACK to such 2xx should > be retransmitted end-to-end as is the case for initial > INVITE. Seems obvious, however, I have not been able > to clarify this question from the text. > > Here my findings: section 14 of RFC 3261 does not address > this issue explicitly. I have been able to find only one > sentence possibly relating to this issue, namely the last > sentence of section 14.1: > "The rules for transmitting a re-INVITE and for generating > an ACK for a 2xx response to re-INVITE are the same as for > the initial INVITE (Section 13.2.1)." > End-to-end retransmissions, however, are explained in > sections 13.2.2 and 13.3.1 rather than in section 13.2.1. > > Regards, > > Peter Paeppinghaus > > -- > Dr. Peter Päppinghaus > Siemens AG | Phone: +49 89 - 722 40065 > ICM N PG U ID A1 | Fax: +49 89 - 722 58726 > Hofmannstr. 51 | Visitors: Building 1713 / Room 714 > D - 81359 München | Email: [EMAIL PROTECTED] > > _______________________________________________ > Sip-implementors mailing list > [EMAIL PROTECTED] > http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > > > -- > Dr. Peter Päppinghaus > Siemens AG | Phone: +49 89 - 722 40065 > ICM N PG U ID A1 | Fax: +49 89 - 722 58726 > Hofmannstr. 51 | Visitors: Building 1713 / Room 714 > D - 81359 München | Email: [EMAIL PROTECTED] > > _______________________________________________ > 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
