On Thu, 2005-11-10 at 11:37 -0800, Bob Penfield wrote: > RFC 3261 section 13.2.2.3 says > > 4xx, 5xx and 6xx responses may contain a Contact header field value > indicating the location where additional information about the error > can be found.
Yes, I'd say that that sentence meant to say "Error-Info", as in no other place is "Contact" described as having a usage like that. > But table 2 indicates it is only legal in a 485 response. > > Header field where proxy ACK BYE CAN INV OPT REG > ------------ ----- ----- --- --- --- --- --- --- > Contact R o - - m o o > Contact 1xx - - - o - - > Contact 2xx - - - m o o > Contact 3xx d - o - o o o > Contact 485 - o - o o o >From the descriptions of the 4xx responses in section 21.4, it looks like 485 is the only 4xx error which has use for Contact. Dale _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
