It is even worse. In many countries you still may make emergency calls
from mobile phones without a SIM card. The majority of calls come
on Sunday morning from people buying mobile phones at the flea-markets
using 112 as test-number to check the device.
You may also reach the PSAPs from some countries (I wiLL
not tell which ;-) via an internatinal number. In most cases your CLI
is not delivered (and definitely not if you make a SkypeOut call)
So we should try to fix some of the problems existing now, but not
world hunger and save the whales. The important thing is, as Brian
not gets tired to state:
that you reach an PSAP if you need one.
-richard
________________________________
Von: ecrit-bounces at ietf.org im Auftrag von Drage, Keith (Keith)
Gesendet: Mi 03.08.2005 11:19
An: James Seng
Cc: ecrit at ietf.org
Betreff: RE: [Ecrit] some observations from yesterday wg meeting
The issue you raise is not created by IP telephony.
The problem exists from the start of Pay as you go cellphones. There are now huge numbers of these phones circulating, all capable of making emergency calls, and large numbers of them totally untraceable back to an end user, due to various reasons like the user has moved (innocent) through to the user deliberately wanting a communication device that is untraceable so supplied false details to start off with.
However, even with this, I do not currently see the anything different from Brian's listed priorities.
regards
Keith
Keith Drage
Lucent Technologies
drage at lucent.com
tel: +44 1793 776249
-----Original Message-----
From: ecrit-bounces at ietf.org
[mailto:ecrit-bounces at ietf.org]On Behalf Of
James Seng
Sent: 03 August 2005 08:36
To: Brian Rosen
Cc: ecrit at ietf.org
Subject: Re: [Ecrit] some observations from yesterday wg meeting
That may be the American experience but certainly not mine.
-James Seng
On 03 Aug 2005, at 3:23 PM, Brian Rosen wrote:
In North America, the PSAPs tell us that their priorities are to:
1. Get the call to the right PSAP
2. Get a call back number
3. Get the location of the caller
To the extent that the current PSTN equates "identity" of the
caller with
the telephone number, they are getting identity as their
second point.
This discussion is more or less out of charter, as the work in ecrit
addresses the first point above.
For ecrit, we did have a discussion on the importance of assuring
that the
location provided is the actual location of the caller. This is
actually
the biggest part of addressing prank calls.
As I said in the meeting, the PSAPs I know would accept a
call with no
location, no call back and no identity. They might be VERY
suspicious of
such a call, but they will take it, and depending on what the
caller said,
they probably will dispatch someone. At least for the PSAPs I
know, while
they will demand a lot of effort to make sure location and call
back are
accurate, they will, in fact, accept a call without it. In that
regard, I
think they care about the house on fire first, and the identity
second.
Brian
-----Original Message-----
From: ecrit-bounces at ietf.org [mailto:ecrit-bounces at ietf.org] On
Behalf Of
James Seng
Sent: Wednesday, August 03, 2005 12:04 AM
To: ecrit at ietf.org
Subject: [Ecrit] some observations from yesterday wg meeting
I am not a regular on this list so whatever I said here is based on
what I see at yesterday wg meeting. Pardon me if these already been
discussed.
1. There are a lot of talks about how caller can authenticate the
emergency response centers (singapore term for what WG's
called PSAP)
but not much talks about how PSAP is going to authenticate the
callers.
Considering how many prank calls typical PSAP gets, I wont be
surprised if their priority is to identify the caller first and less
about your house on fire.
No I am serious. That's my experience when dealing with them on E911
when we are working on our IP Telephony framework.
2. Any bet how long it will take PSAP to install a SIP server into
their system? Especially a system which will allow anyone from
anywhere in the world to call them anonymously?
So while it is important for the caller to be able to identify his
nearest PSAP, it is equally important for PSAP to be able to (a)
identify the caller and (b) establish that the caller is within the
zone they are serving.
-James Seng
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