Hi Shinji,
> IMO, Paul, Christer and I agree with this NOTE.
> And in previous discussions it seems to be agreed.
> Therefore, I think this is not a normative change but a BCP text.
Considering personal feeling or tendency, it is OK. But I just feel in INFORMATIVE text, it is not proper to put conclusion as parts of RFC3262 is not correct.
I'd like show my concession here. I am not against for text might like "NOTE: 4xx of PRACK need further evaluation, and one niceargument is 401".
The difference is this type of description would be moderate. And I still think that put challenge in 1xx(100-rel) is also *nice* argument for people dislike of re-sending of PRACK.
> I agree "or just may terminate the dialog".
> But I think "send again a PRACK" is more effective than
> "terminate the dialog". Therefore, we should make the UAC
> re-send PRACK as *should*.
I just feel the *should* is more than INFORMATIVE.
Please refer to the text about NOTE I mentioned above. I guess the phraseology here is close relating to the NOTE.
Thanks,
Gao
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