[82504] in North American Network Operators' Group
RE: Vonage Selects TCS For VoIP E911 Service
daemon@ATHENA.MIT.EDU (David Lesher)
Wed Jul 20 10:05:40 2005
X-Original-To: wb8foz@panix.com
From: David Lesher <wb8foz@nrk.com>
To: nanog@merit.edu (nanog list)
Date: Wed, 20 Jul 2005 10:02:57 -0400 (EDT)
Reply-To: wb8foz@nrk.com
Errors-To: owner-nanog@merit.edu
>
>
> I think this can work. Put a battery backup in the ATA, to power the
> GPS and real time clock. The ATA will maintain the internet-routable
> address it's using (not necessarily it's own IP address) indefinitely.
> If the ATA determines it's routable address (or /23 or whatever subnet)
> has changed since being disconnected, it prompts (via voice menu on
> connected phones) that it needs to be taken outside and re-GPS'ed.
> Flashing light on the box confirms when GPS has synced it's location.
> Take it back inside, plug it in, and all is ok again. Or something
> along those lines....
So will you block all useage until you do so?
Any voluntary compliance solution will fail the CALEA aspect.
And I recall reading somewhere in the trade press that the reason
some cellular carriers went to GPS-based solutions was they could
not meet the FBI specs for accuracy with tower-timing solutions.
And needless to say, I can think of many places both cellular and
VOIP cam be used where GPS will be worthless.
One other point: both the FBI and EMS want to know which office
on which floor of the Empire State Building you are in when you
call, not just a 2-D circle of X radius.
--
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Unless the host (that isn't close).........................pob 1433
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