Christer,
Should the 199 response contain a Contact header? And if yes, in case a
proxy sends it, should it contain the address of that proxy (since the
UAS already sent a final response)?
Should we say that a proxy may only generate and send a 199 when it
receives a final error response on an INVITE client Transaction which
was in the PROCEEDING state? (i.e. 1xx response was received before, so
conceptually sending the 199 response is an action associated with the
transition from PROCEEDING to COMPLETED)
Regards,
Jeroen
Christer Holmberg wrote:
Hi,
I agree it may be a good idea to not forbid sending it reliably.
I do think it would be good to have text, saying that it can be sent unreliable
even if reliable responses are required, though, so that proxies aren't forced
to terminate PRACKs etc.
Regards,
Christer
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: 21. kesäkuuta 2008 1:38
To: [email protected]
Subject: Re: [Sip] Draft submission: draft-ietf-sip-199-00
From: "Christer Holmberg" <[EMAIL PROTECTED]>
[CHH] Whether the text should be in the document at all depends on if we
allow 199 to be sent reliably in the first place. Based on the comments
received so far we should not mandate 199 to be sent reliably, even if
100rel is required by the UAC. But, the question if whether we want to
FORBID sending it reliably.
If we ever might allow 199 to be used for HERFP, we should admit the
possibility of sending it reliably in the first draft. Otherwise, we'll be
locked out of sending it reliably in the future.
Dale
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