Hi John, >>Target, if present, always represents the current target. A receiving >>entity that receives a request without a Target header has to assume >>that the Request-URI represents the current target. When no Target >>header is available on the request then the Target is inserted when a >>reroute is performed. >> >>P-CPI is ONLY used to maintain the R-URI which is rewritten by the >>contact of the UAS. I.e. by the home proxy which is usually >>at the end of a chain of proxies. >> >>When both Target and P-CPI are used: Target always represents the >>current target. P-CPI always represents the AOR received by the home >>proxy which may in some cases be the same as the current target but it
>>may also be the last route (not equal to the current target) taken to >>deliver the request. >> >[JRE] I think I am getting there. So the target could be some >sort of call centre group, for example, and P-CPI could be >the AoR of the selected member of that group. Correct? Correct. >I am a little concerned about using the term "AoR" in the >definition of these AoRs. What about a request targeted at a >GRUU? I would imagine the Target and P-CPI would both contain >the GRUU, which is not an AoR. Good point. I guess we could simply say URI. We'll fix that in the next version of the document. Regards, Christer _______________________________________________ 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
