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Re: [Sip] Early media as an endpoint application



DOLLY, MARTIN C, ATTLABS wrote:

Paul,

We could try taking up the accounting topic in BLISS, but need to be
aware of all the national variants.


Well, "all" is rather daunting. :-)
Perhaps it would be sufficient to have a "representative set" of use cases?

	Thanks,
	Paul


Martin

-----Original Message-----
From: Paul Kyzivat [mailto:pkyzivat at cisco.com] Sent: Friday, August 22, 2008 10:44 AM 
To: DOLLY, MARTIN C, ATTLABS
Cc: dyork at voxeo.com; sip-bounces at ietf.org; Henry Sinnreich; Dean Willis;
Dwight, Timothy M (Tim); sip at ietf.org; ekr at rtfm.com; Dan Wing
Subject: Re: [Sip] Early media as an endpoint application



DOLLY, MARTIN C, ATTLABS wrote:

Dan,

I support a draft that relays a CN, but would have issues with the

IETF

addressing issues WRT when billing/charging should begin and end.
IMO the ietf has no desire to be involved in deciding when billing begins and ends. But its hard to deny that the issue isn't a subtext to many other decisions about how things are done.
Its like some of the requests that have come from IMS - they sometimes start out as a request that some particular artifact be added to sip, with little explanation of why, or how it will be used, or why the proposed mechanism was selected rather than some other one. Usually in such cases we push back and ask for requirements that are more in the form of use cases, so that an appropriately general mechanism can be designed.
I think it *might* be reasonable for accounting to be taken up as a topic by Bliss - not to standardize how it is done, but to examine a number of use cases of differing ways that accounting might be done, and 

how the protocol does/doesn't facilitate them.

	Thanks,
	Paul
Martin 
-----Original Message-----
From: Dan York [mailto:dyork at voxeo.com] Sent: Thursday, August 21, 2008 7:37 PM 
To: DOLLY, MARTIN C, ATTLABS; sip-bounces at ietf.org; Henry Sinnreich;
Dean Willis; Dwight, Timothy M (Tim)
Cc: sip at ietf.org; ekr at rtfm.com; Dan Wing
Subject: Re: [Sip] Early media as an endpoint application

Martin,

To a certain degree, some of us have already been taking on the
billing/charging question. See my P-Charge-Info draft (which I have

been

told in comments today is doing something similar to the ISUP Charge
Number parameter).

Dan



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