All Responses to Non-Invite (Subscribe Register etc) do not have ACK. Only Invite Transaction is a three way handshake which mandates an ACK for any response.
Kasturi -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andreas Byström Sent: Friday, September 29, 2006 7:32 AM To: [email protected] Cc: 'Pierre Desaulty' Subject: [Sip-implementors] (no subject) Whats the expected behavior for a AUC when receiving a 401 or 407? My guess was that all 4xx responses should be responded with an ACK from the UA. But looking at the exaples of RFC3665, it looks like a 401 does not have an ACK but 407 does require an ACK. Is there any note about this in rfc3261, that 401 and 407 should be treated different? Maybe it has to do wich type of request that is submitted (in rfc3665 agian, register and 401 has no ack, invite and 407 has an ack)? Regards, // Andreas _______________________________ Andreas Byström Software Engineer Teligent AB Konsul Jonssons väg 17 P.O. Box 213 SE 14923 Nynäshamn mail: [EMAIL PROTECTED] web: www.teligent.se <http://www.teligent.se/> phone: +46 (0)8 4101 7221 mobile: +46 (0)733 1172 21 fax: +46 (0)8 520 193 36 _______________________________ _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
