Re: [Sip] New version (-04) of draft-ietf-sip-199

["Sanjay Sinha (sanjsinh)" <sanjsinh at cisco.com>]

>
>
>>>"When a forking proxy receives a non-2xx final response which 
>>>terminates one or more (if forking has occured downstream a final 
>>>response received by the forking proxy MAY terminate multiple early 
>>>dialogs), and the proxy does not intend to forward the final 
>response 
>>>immedialetly (due to the rules for a forking proxy),
>and 
>>>the UAC has indicated support of the 199 response code, the proxy 
>>>SHOULD generate and send a 199 response upstream for the early dialog
>on which the
>>>non-2xx final response was received, unless the proxy has previously 
>>>recieved and forwarded a 199 response for the dialog."
>>
>>Wow! We really must shorten this sentence. In particular I don't like 
>>including a second normative sentence in parentheses within the main 
>>sentence.
>
>I can try to think of more simple wording. 
>
>And, text suggestions are of course always welcome :)

Along the same lines, I found text about support for 100rel also
confusing. I think the preference is that this response be not sent
reliably, though the normative strength is slightly week for UAS as
compared to a forking proxy. I think it should be simplified and just
say that 100rel option does not have significance for this. As an
addition, it will also simplify it's association with offer-answer
exchange (fact that 199 should have offer sdp for delayed media Invite)

Sanjay
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