Re: draft-ietf-sip-info-events-00: Content-Type vsInfo-Package [was RE: draft-ietf-sip-info-events-00: multiplepackages per INFO]

DRAGE, Keith (Keith) wrote:
> Should we even allow bodies that do not relate to info packages in INFO
> messages (legacy issues excepted).

I think we must allow it. The use case I have in mind is when there is a 
header in the message that contains a URI, and the desire is to use a 
CID URI referencing a  body part in the message. (To avoid the need to 
have or access a separate server.

An example of this would be a Geolocation header. (Although the draft 
for that seems to have expired.)

I don't know if that precise case makes practical sense, but its an 
example of a general mechanism we have that should not be excluded.

Another example (though improbable) is an S/MIME body.

> If I had a SDP offer to send at the same time as a body for an info
> package, I suspect I would be told to send one in a reINVITE and the
> other in an INFO, rather than combine them in a single message.

Yes, it is certainly true that sending a SDP for purposes of O/A is 
inappropriate in INFO.

> Whatever the answer to this question, I guest the draft would need a
> paragraph to cover it.

Yes, I agree.

	Thanks,
	Paul

> Regards
> 
> Keith
> 
>> -----Original Message-----
>> From: [email protected] [mailto:[email protected]] On 
>> Behalf Of Dean Willis
>> Sent: Friday, October 24, 2008 10:36 PM
>> To: Christer Holmberg
>> Cc: SIP IETF; Paul Kyzivat
>> Subject: Re: [Sip] draft-ietf-sip-info-events-00: 
>> Content-Type vsInfo-Package [was RE: 
>> draft-ietf-sip-info-events-00: multiplepackages per INFO]
>>
>>
>> On Oct 24, 2008, at 4:32 PM, Christer Holmberg wrote:
>>
>>> Hi,
>>>
>>>>> [Christer] I agree that a package could be associated 
>> with a number 
>>>>> of content types. But, since the Info-Package header shows which 
>>>>> package is included, I just wonder why we can't use a common C-T 
>>>>> mime.
>>>>>
>>>> Then which of the multiple bodies, each of which carries 
>> the same C-T 
>>>> mime marking, is which? Are you relying on ordering?
>>> Let's assume BOTH bodies contain C-T: image/jpeg. How do you know 
>>> which is associated with the info package?
>>>
>> So you have a multipart body, with one or more parts related to an  
>> INFO package, and other parts related to something else, such 
>> as AIB,  
>> E2M, etc. Right?
>>
>> The content-disposition of the body parts related to INFO packages  
>> needs to differentiate them from the other body parts.
>>
>> --
>> Dean
>>
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> 
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