Re: AW: [Sipping] A Framework for Reducing Spam for Internet Telephony

[Juergen Quittek <[e-mail]>]

hi Hannes,

--On 15.06.07 21:51 +0200 Tschofenig, Hannes wrote:
>
> Hi Saverio,
>
>> -----Ursprüngliche Nachricht-----
>> Von: Saverio Niccolini [mailto:[e-mail]]
>> Gesendet: Freitag, 15. Juni 2007 11:24
>> An: Hannes Tschofenig; SIPPING LIST
>> Betreff: RE: [Sipping] A Framework for Reducing Spam for
>> Internet Telephony
>>
>> Dear Hannes,
>>
>> This is a nice work that clearly matches also what we have in
>> mind for the SPIT prevention system we are currently running.
>>
>> Actually I wanted to let you know that for some of the
>> interactions or authorization policies you describe in Figure
>> 1 there are already available drafts that propose solutions:
>> http://tools.ietf.org/id/draft-niccolini-sipping-feedback-spit-03.txt
>> or describe scenarios for the interactions:
>> http://tools.ietf.org/id/draft-niccolini-sipping-spitstop-00.txt
>>
>> It would be nice to have them referenced as well in the draft.
>
> There are quite a number of solutions proposals floating around.
> We tried to avoid too many references but some more would not hurt. What do you think is particularly interesting to mention in the context of the framework?
>
> One of the main ideas for writing the framework document was to identify the minimum functionality you need to standardize
> now. Other things can be done in the future -- potentially never.
>
>>
>> Moreover, our SPIT prevention framework (you can find
>> references of it in proceedings of Globecom 2006) uses
>> already some of the authorization policies you are describing
>> also in the other draft (http://fon.gs/spit-requirements), namely:
>> -- we have built white/black list based on identities (or
>> part of it), this matches Req-C 1 and Req-C 2
>> -- we block certain messages based on the spam-level marking,
>> this supports Req-C 7
>> -- we mark the messages with a certain spam-level and forward
>> this to the caller, this supports Req-A 2
>> -- we use some kind of Turing Tests built in answering
>> machines, this supports Req-A 4
>> -- we also run anomaly detection methods able to mark the
>> calls and make this available for other entities, this
>> supports Req-T 1
>
> So, it seems that you think that many of the requirements are in fact reasonable.

Indeed.

> Have you spotted missing functionality or functionality you wouldn't provide immediately (or not at all)?
>
>
>>
>> I think all in all these two drafts you recently wrote
>> complement well the SPITSTOP work we are currently discussing
>> in the SPITSTOP mailing list, it is just a pity that they are
>> coming too late to support the BOF request that was just rejected.
>
>
> We have been trying hard to get the documents finished but that was the best we were able todo.
> In fact, we wanted to write the document already a year ago when I went out for dinner with Henning Schulzrinne, Jonathan Rosenberg, Dan York and David Schwartz.
>
> Btw, I was actually hoping that we don't really need a BOF to get this work started.
> We don't schedule BOFs for every tiny document we write.

Thank you very much! (considering that you co-author 55 I-Ds ;-)

However, (a) there is already quite a number of tiny documents on SPIT
and (b) I remember that about half a year ago it was you suggesting a BoF on SPIT ;-)

>>
>> I hope we can sit together in Chicago at the BAR BOF and
>> discuss the way to move the all work on SPIT forward in the IETF.
> I hope so too.

Looking forward to it,

    Juergen

> Ciao
> Hannes
>
>> Cheers,
>> Saverio
>>
>> > -----Original Message-----
>> > From: Hannes Tschofenig [mailto:[e-mail]]
>> > Sent: Thursday, June 14, 2007 1:29 PM
>> > To: SIPPING LIST
>> > Subject: [Sipping] A Framework for Reducing Spam for
>> Internet Telephony
>> >
>> > Hi all,
>> >
>> > we have just submitted a new draft on "A Framework for
>> Reducing Spam for
>> > Internet Telephony".
>> > Please find the document here: http://fon.gs/spit-framework
>> >
>> > This document attempts to scope the work on reducing Spam
>> for Internet
>> > Telephony.
>> >
>> > Ciao
>> > Hannes
>> >
>> >
>> >
>> > _______________________________________________
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>> > Use [e-mail] for new developments of core SIP
>>
>>
>> _______________________________________________
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>> Use [e-mail] for questions on current sip
>> Use [e-mail] for new developments of core SIP
>>
>
>
> _______________________________________________
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> This list is for NEW development of the application of SIP
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-- 
Juergen Quittek        [e-mail]       Tel: [phone]
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