[comp.dcom.telecom] Enhanced 911

davidb@pacer.com (David Barts) (03/14/90)

Monday (12 March) an article appeared in the [Seattle Times] about the
impact of PBX's on Enhanced 911.  I don't have the complete text of
the article with me, but it was quite long and rambled a bit so I'll
summarize:

Basically, a six-year-old child called 911 for a medical emergency (I
believe his/her mother was choking).  The child was panicked and
couldn't remember the address of his/her apartment, which normally
wouldn't be a problem because that part of King County has E911
service.

But the apartment complex was served by a PBX owned by a company
several miles away.  The address that came up on the E911 display was
that of the PBX company, not the location of the emergency.

Fortunately, the 911 dispatcher figured out that the address on the
E911 display was not correct, looked up the company's business number,
and found the correct address of the apartment.  (This time.  I could
easily imagine a tired or overworked operator sending an ambulance to
the address of the PBX owner.)

Even then, the complex involved had several buildings and there was
some question as to which one had the emergency.

Naturally, if the tenants had been served directly by Pacific
Northwest Bell instead of the PBX, E911 would have been able to supply
the correct address down to the apartment number.  The article
mentioned that apartment PBX's were becoming increasingly common and
this problem would also occur at many businesses (although I'd assume
there would be less chance of a frightened, confused child making a
911 call from an office).

 From what I remember of previous discussions in this group, I get the
impression that fixing E911 to handle this problem would be difficult.

(Also mentioned was that not all of King County has E911 service yet.)


David Barts			Pacer Corporation
davidb@pacer.uucp		...!uunet!pilchuck!pacer!davidb

Glenn M Cooley <gmc@mvuxr.att.com> (03/15/90)

>Basically, a six-year-old child called 911 for a medical emergency (I
>believe his/her mother was choking).  The child was panicked and
>couldn't remember the address of his/her apartment.

I agree that it certainly is better to spend millions of my
hard-earned tax dollars for the high-tech solution to this scenario
than for the child's parents to tape their address on the back of the
phone :-) (BTW could you people help get the government to install
under pavement heaters so that I don't have to buy snow tires.)

Steve Swingler <SWINGLERS@baylor.ccis.baylor.edu> (03/16/90)

     Enhanced 911 *CAN* be implemented from many large PBXs.  It
simply requires the use of ANI trunks and an accurate database.  It
has been done by several different groups...the one that comes to mind
is the City of Seattle.  They use several NT SL-1 switches, and they
all provide accurate E911 data to the E911 Operator.

     The problem with the previously mentioned apartment complexes is
the lack of pressure on the owners of the places to spend the money to
fully implement E911, just in case it is ever needed.


Steve Swingler
Center for Computing and Information Systems
Baylor University

<wilson@ccop1.ocpt.ccur.com> (03/20/90)

In article <5246@accuvax.nwu.edu>, gmc@mvuxr.att.com (Glenn M Cooley)
writes:
 
> I agree that it certainly is better to spend millions of my
> hard-earned tax dollars for the high-tech solution to this scenario
> than for the child's parents to tape their address on the back of the
> phone :-) 

I like the humor but E911 has real advantages and potential for cost
savings in dispatcher costs through manpower reductions.

Usually, E911 is integrated into a computer aided dispatch system at
the Public Safety Answering Point (PSAP).  When a dispatcher answers
the call, the address and phone number are automatically run against
the computer system and displays all the information known about the
address.  This includes what fire company, first aid squad and police
patrol car should be dispatched to the address and any known hazards
on scene (dangerous chemicals, etc.)  The dispatcher, once she
determines the nature of the problem (Police, Fire, Medical) merely
has hit the corresponding button to dispatch the appropriate agency
automatically whether by phone, radio or computer depending on the
system.

This also allows the computer to log the incident and response,
freeing the dispatcher to handle the next call, hence, fewer
dispatchers are required then with a manual look-up process.  However,
this cost reduction can only be acheived by consolidating dispatch,
i.e. one county PSAP instead of twenty-seven township ones.  Here
politics can get in the way.

E911 allows the dispatcher to send help quicker and with less chance
of data entry error.  A human is still needed in the loop to filter
out false calls and occasional errors such as the PBX one.

The magazine of choice for people interested in this topic is the
"APCO Communicator" published by the Associated Public Safety
Communications Officers, Inc. of which I'm a member.


73

Gary Wilson, WB2BOO
Deputy Communications Coordinator (Volunteer)
Office of Emergency Management
Mercer County, New Jersey

PS  The address and phone number should STILL be taped to the phone !

     :-}

cramer@uunet.uu.net (Clayton Cramer) (03/21/90)

In article <5246@accuvax.nwu.edu>, gmc@mvuxr.att.com (Glenn M Cooley) writes:
 
> >Basically, a six-year-old child called 911 for a medical emergency (I
> >believe his/her mother was choking).  The child was panicked and
> >couldn't remember the address of his/her apartment.
 
> I agree that it certainly is better to spend millions of my
> hard-earned tax dollars for the high-tech solution to this scenario
> than for the child's parents to tape their address on the back of the
> phone :-) (BTW could you people help get the government to install
> under pavement heaters so that I don't have to buy snow tires.)

But that's not the only scenario where 911 ANI is extremely useful.

1. A person manages to dial 911, and loses consciousness (or is
interrupted by a blunt object) part way through the call.

2. A person hears a burglar in the next room, dials 911, and is afraid
to speak loud enough to be clearly heard.

3. A person who isn't sure of the address of where they are because
they were taken there against their will, or were too loaded to know
where they are.

4. The case alluded to above, involving a panicked or small child,
though, is probably a common one, and very worthwhile.


Clayton E. Cramer {pyramid,pixar,tekbspa}!optilink!cramer
No matter what other nations may say about the United States,
immigration is still the sincerest form of flattery.
Disclaimer?  You must be kidding!  No company would hold opinions like mine!

news@accuvax.nwu.edu (USENET News System) (03/21/90)

In article <5231@accuvax.nwu.edu>  Volume 10, Issue 177, Message 5 of 10
Steve Swingler writes:

>     Enhanced 911 *CAN* be implemented from many large PBXs.  It
>simply requires the use of ANI trunks and an accurate database.  It
>has been done by several different groups...the one that comes to mind
>is the City of Seattle.  They use several NT SL-1 switches, and they
>all provide accurate E911 data to the E911 Operator.

>     The problem with the previously mentioned apartment complexes is
>the lack of pressure on the owners of the places to spend the money to
>fully implement E911, just in case it is ever needed.

Steve in correct in purely technical terms.  Many PBX's have AIOD
(Automatic Idenification of Outward Dialing) capability.  The reason
it is seldom used is refusal of the local phone companies to offer the
service.

Why?  It lets the PBX vendor compete with Centrex.  The phone
companies boast about the billing info they can provide on Centrex
stations, and use it as a marketing tool.  They then refuse to offer
AIOD to prevent equal capability to PBX vendors.  The reason AIOD was
developed was to let telco installed PBX's do this.

I have fought this battle with Ohio Bell and GTE Ohio for over ten
years.  And now they are using E911 as another reason to buy Centrex.

I have no problems with the telco doing this.  They should be required
to offer AIOD and DID lines tarrifed at reasonable prices as part of
their Centrex offering, and not be allowed to set up a marketing
advantage by denying these services.

(Repeat of same argument applies to telco payphones and COCOT access
lines: a level playing field should be required.)


 Macy M. Hallock, Jr.     macy@NCoast.ORG         uunet!aablue!fmsystm!macy
 F M Systems, Inc.      {uunet!backbone}!cwjcc.cwru.edu!ncoast!fmsystm!macy
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 (Please note that our system name is "fmsystm" with no "e", .NOT. "fmsystem")

gordonl@microsoft.UUCP (Gordon LETWIN) (03/22/90)

In article <5143@accuvax.nwu.edu>, davidb@pacer.com (David Barts) writes:
> Monday (12 March) an article appeared in the [Seattle Times] about the
> impact of PBX's on Enhanced 911.  
 
> Basically, a six-year-old child called 911 for a medical emergency (I
> believe his/her mother was choking).  

The actual story was that the mother had the flu and felt "short of
breath".  Presumably she had the kid call 911.

So folks, don't wait for an emergency, if you get a splinter in your
finger, call 911!  After all, they won't charge *you*, and you'll get
all that free attention!  Heck, it's more fun then watching soap
operas.

	Gordon Letwin


[Moderator's Note: Far be it from me to promote the abuse of 911, and
in fact I teach that 911 should only be used in dire emergency, when 
intervention by the police, fire or medical personnel is needed
immediatly. But let's not second-guess what 'shortness of breath' means.
In Chicago not long ago, a grandmother had a heart attack; her five year
old grandson called 911 to report 'gramma is breathing funny'.  PT]