Sumant, > Does it serve any purpose if we send Require/Proxy-Require header in the ACK > request? If we have Require/Proxy-Require in Initial Invite, we can have the same (or) subset of tags in the ACK. It will not server any purpose in sending new tags in Require/Proxy-Require in the ACK Request. The Reason is ACK cannot be rejected.
Its good not to add these headers in ACK as they serve no purpose. This Text could have been worded better in 3261 : not to include these headers in ACK (as mentioned in Table2.) -Sreeram. -----Original Message----- From: Sumant Gupta [mailto:[email protected]] Sent: Tuesday, May 14, 2013 3:26 AM To: [email protected] Subject: [Sip-implementors] Require header in ACK request Hi All, As per 3261 "An ACK request for a 2xx response MUST contain only those Require and Proxy-Require values that were present in the initial request". As per table 2 (rfc 3261) require header is not applicable in ACK request. Does it serve any purpose if we send Require/Proxy-Require header in the ACK request? Any reason why it is mentioned in RFC as older posts on this forum does not provide any concrete answer? Regards Sumant _______________________________________________ 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
