RE: [Ecrit] Hiding (partial) locations

["Brian Rosen" <br at brianrosen.net>]

I am not a carrier, and I don't play one on TV.

I'll let the carriers speak for themselves.

I don't think, based on my understanding, they will agree with you, I'll let
them say it direct.

Brian

> -----Original Message-----
> From: Henning Schulzrinne [mailto:hgs at cs.columbia.edu]
> Sent: Monday, April 16, 2007 3:31 PM
> To: Brian Rosen
> Cc: 'ECRIT'
> Subject: Re: [Ecrit] Hiding (partial) locations
> 
> 
> On Apr 16, 2007, at 2:57 PM, Brian Rosen wrote:
> 
> > I don't understand this.
> >
> > If, in order to make a route decision, you need street name and house
> > number, but the access network wishes to hide location from non
> > emergency
> > use cases, how the heck do we supply "coarse" location that is any
> > different
> > from full LbyV?
> 
> I'm saying that in those exceptional cases, ISPs should indeed give
> out more information. This does not significantly devalue their
> precious location information since only a few "lucky" customers
> receive it, but it makes the system more robust. That seems like a
> fair trade-off to me.
> 
> 
> >
> > You can't restrict the access network from hiding location ONLY IF
> > the PSAP
> > boundary is truly coarse.  I'm also not so sure the access networks
> > would be
> > willing to give out coarse location down to, say, city.
> >
> 
> They do today - via the area code and exchange in phone numbers,
> which are, as far as I know, disclosed to customers. Indeed, DT uses
> phone numbers as the user identity for their DSL customers, if I
> remember correctly. (In Germany, each city has its own area code,
> more or less, so this fits your description of coarse location down
> to a city pretty well; see http://www.deutschland-adressen.de/
> vorwahlen-02.php for an example) I haven't heard that this has caused
> major revenue loss or heart burn to phone companies.
> 
> 
> > So, I guess I disagree this is a fair trade-off.  In fact, I think
> > it's a
> > non-starter.
> 
> Are you representing carriers?
> 
> >


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