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Re: [Sip] draft-ietf-sip-info-events-00: Content-Type vs Info-Package [was RE: draft-ietf-sip-info-events-00: multiple packages per INFO]



Correct.

On Oct 23, 2008, at 4:07 PM, Paul Kyzivat wrote:



Christer Holmberg wrote:
Hi,
Let's assume I want to send an INFO with package foo.
The value of the Info-Package header is "foo", right?
Now, what is the value of the Content-Type header?

The package could support a number of content types: image/jpeg, text/plain, multipart/related, ...
Anything that the definition of the package says is allowed.

At least that is how I think Eric intended to to be.

	Paul

Is it something which is generic for all info packages (e.g. application/info), OR is it something which is specified in the foo package description?
Regards,
Christer
________________________________
From: Paul Kyzivat [mailto:pkyzivat at cisco.com]
Sent: Thu 23/10/2008 20:21
To: Christer Holmberg
Cc: Dean Willis; SIP IETF; Eric Burger
Subject: Re: [Sip] draft-ietf-sip-info-events-00: Content-Type vs Info-Package [was RE: draft-ietf-sip-info-events-00: multiple packages per INFO]
Christer,
I don't understand where you are heading with this?
If I want to send an INFO with a jpeg, then what is this other mime type
doing other than getting in my way.
OTOH, we haven't discussed Content-Disposition wrt INFO. In the absence of any mention, I assume that "render" will be used for info packages,
and the detailed processing defined by the Info-Package value.
In some sense, the Info-Package value is serving the same purpose as
Content-Disposition. We could *consider* using the C-D *instead* of the Info-Package header, so that what we would be negotiating would be the acceptable C-D values. The downside of that is that we would then need
to open up the registration of new C-D values. I think that might be
opposed by a lot of people.
       Thanks,
       Paul
Christer Holmberg wrote:
Hi,

Shouldn't we use Content-Type to indicate what is in the message body?
After all, we may need Content-Length etc.
Ah, no.

We had extended conversations on this earlier. Content-Type tells you what's in the body; it just doesn't tell you what to DO with the body.

What, for example, is the purpose of an image/jpeg in an INFO?
That is not what I meant.

We can use the Info-Package header, but can't we use a generic mime value - which tells us that there is an info package in the body.

Regards,

Christer
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