Re: AW: AW: AW: [Sipping-tispan] TISPAN requirements, first requiements

Tom-PT Taylor wrote:

>>
>> Well, I am not sure if that will work at all. Essentially this 
>> requires to allocate a bunch of bogus identities to those authorities 
>> that can bypass ACR. Anonymity will be achieved by having a large 
>> number of bogus identities, and having the UAC software able to change 
>> the identity on every call to the same callee (otherwise, the callee 
>> will know who is ringing the second time).
>>
>> Still it won't solve the issue of what happens if that authority 
>> selects the "anonymity" button in his UAC, and does an anonymous call? 
>> If you read the european privacy act (referred to in this list a few 
>> days ago),  the call will not go through if the calle has ACR 
>> activated, and most likely, the operatore will be responsible for it. 
>> Perhaps something that we shouldn't be taking a risk on.
>>
> [PTT] I still don't understand.  Why would a bunch of bogus identities 
> have to be allocated?  Why can't the common identity: "Official" be 
> used, for instance?

Because if you allocate an "Official" identity, which is presented to 
the callee, then a second call that will come from the same identit the 
callee would actually know who is calling... Well, perhaps you can argue 
that there is no requirement to tackle this problem (and perhaps you are 
right): it seems that the goal of the regulator is to deliver the call 
to the callee, not to prevent the callee to guess who is calling.

So, ok, perhaps we don't need "a bunch" if bogus identities, but just a 
bogus identity (per category).

/Miguel

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

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