From: Hannes Tschofenig <[EMAIL PROTECTED]> in ECRIT we assumed that the Request URI contains the service URN. We put that stuff into the Phone BCP document (which unfortunately still contains an error I just noticed). That's what we told the 3GPP in the past as well. Hence, they wrote it in their specs. See TS 24.229, Section 5.1.6.8.3, bullet (1).
Within the ECRIT group we weren't aware that this issue has not been decided and hence we are a bit concerned about the recent change given that other SDOs followed our suggestion already. Do you have an idea what we should do now? I suspect there is a misunderstanding here: There was some lengthy discussion of a generalized "UA loose routing" (using URNs as request-URIs) mechanism on the SIP mailing list, which discussion did not result in a consensus. However, in the course of the discussion, the use of "loose routing" for emergency calls was mentioned, and I believe that a consensus in favor of that technique was expressed. The criticial differentiations between the emergency case and the general case seem to be (1) a small number (possibly 1) of very standardized URNs would be used, and (2) the ability of "loose routing" to prevent fradulient usage of priority service without the prior exchange of authentication information. Dale _______________________________________________ Sip mailing list https://www1.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [EMAIL PROTECTED] for questions on current sip Use [EMAIL PROTECTED] for new developments on the application of sip
