Re: [Sipping] Re: New Draft on TISPAN analysis for SIP solutions concerning the simulation Services

Hi Davd:

Because bodies are supposed to be end-to-end information, so if a UA 
inserts a body, a proxy shouldn't be touching it, otherwise, it wouldn't 
be a proxy, but a B2BUA or UA. So having a body here will just limit the 
operation of the application server to B2BUAs.

We want to have the possibility of the application server that provides 
the AoC information to behave as a SIP proxy, just reading the header, 
and then providing the information by other means. For instance, it has 
been discussed that the application server could send an Instant Message 
to the UA containing either the information or a content indirection 
link. This instant message will go out of the existing dialog, so the 
application server could be acting as a UA for the instant message.

BR,

       Miguel

David R Oran wrote:

> Would you please provide justification in the draft for why this  
> should be a header and not a body? I can't for the life of me figure  
> out why this can't be done with a body (which would require  
> essentially no change to SIP, only a MIME registration) since proxies  
> do nothing with the header I can discern.
> 
> Thanks, Dave.
> 
> On Jul 1, 2005, at 2:56 AM, Miguel Garcia wrote:
> 
> 
>>And I have also submitted another draft that proposes a P- header  
>>to support the Advice of Charge service.
>>
>>Until the draft is officially distributed, it can be retrieved from:
>>
>>http://people.nokia.net/~miguel/drafts/draft-garcia-sipping-etsi- 
>>ngn-p-headers-00.txt
>>
>>/Miguel
>>
>>Jesske, R wrote:
>>
>>
>>
>>>Dear all,
>>>A new draft regarding the analysis of the requirements on TISPAN  
>>>simulation services as described in draft-jesske-sipping-tispan- 
>>>requirements-01  is now available.
>>>It can be fond under:
>>>http://www.ietf.org/internet-drafts/draft-jesske-sipping-tispan- 
>>>analysis-00.txt We would like to start the discussion on solutions  
>>>for the requirements we stated in draft-jesske-sipping-tispan- 
>>>requirements-01 (http://www.ietf.org/internet-drafts/draft-jesske- 
>>>sipping-tispan-requirements-01.txt).
>>>This draft should be seen as a discussion basis and brainstorming  
>>>of some people thinking about SIP solutions.
>>>Every comment and discussion is welcome and helps to find a solution.
>>>Thank you.
>>>Best Regards
>>>Roland
>>>Deutsche Telekom AG
>>>T-Com Zentrale
>>>Roland Jesske, TE332-2
>>>Section TE33; Signalling, Gateways and Switching Systems
>>>Am Kavalleriesand 3, 64295 Darmstadt, Germany
>>>Phone:  +49 6151 83-5940
>>>Fax:      +49 6151 83-4577
>>>email:   r.jesske@t-com.net
>>>
>>
>>-- 
>>Miguel A. Garcia           tel:+358-50-4804586
>>sip:miguel.an.garcia@openlaboratory.net
>>Nokia Research Center      Helsinki, Finland
>>
>>
>>_______________________________________________
>>Sipping mailing list  https://www1.ietf.org/mailman/listinfo/sipping
>>This list is for NEW development of the application of SIP
>>Use sip-implementors@cs.columbia.edu for questions on current sip
>>Use sip@ietf.org for new developments of core SIP
> 
>>

-- 
Miguel A. Garcia           tel:+358-50-4804586
sip:miguel.an.garcia@openlaboratory.net
Nokia Research Center      Helsinki, Finland

_______________________________________________
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This list is for NEW development of the application of SIP
Use sip-implementors@cs.columbia.edu for questions on current sip
Use sip@ietf.org for new developments of core SIP