TELECOM Digest     Tue, 7 Mar 95 12:07:00 CST    Volume 15 : Issue 139

Inside This Issue:                          Editor: Patrick A. Townson

    North America's New Toll Free Code: 888 (Norman R. Tiedemann)
    Seeking GSM Contacts (Jack Hurst)
    Home PBX Wanted (Tom Blog)
    Help: Do You Know This Chip? Manufacturer? (D. Emilio Grimaldo)
    Re: Yes, Yung'uns. CNID -is- Logged at Your Local CO (Fred Goodwin)
    Re: AT&T Calling Card Mixup (Kareem Hinedi)
    Re: AT&T Offers 'International Redial' (Kareem Hinedi)
    Re: Paging Interface With Computer (Michael Berlant)
    Re: Pair Gain Line Problem (Steve Satchell)
    Re: 800 Directory Listings Wanted (Gerry Brown)
    Re: Motorola Flip Phone and Low Battery (George Wang)
    Re: Europe Postal Services and Datacom (Francisco van Jole)
    Re: MCI Cashes AT&T Checks (Stan Schwartz)
    Re: Credit Checking on Cellular Customers (Javier Henderson)
    Re: Automatic Message Accounting Standard Wanted (Howard M. Weiner)
    Re: Anyone Heard of SMR - Specialized Mobile Radio? (Glenn Blanc)
    Save Money by Proper Use of Tariffs (Leo Berz)
    Long Distance Re-Billers Wanted (Richard W. Kreutzer)
    Re: Book Review: "Modems Made Easy" by Hakala (Rich Brown)

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----------------------------------------------------------------------

From: Norman.R.Tiedemann@att.com
Subject: North America's New Toll Free Code: 888
Organization: AT&T Bell Laboratories
Date: Mon, 6 Mar 1995 19:52:15 GMT


A little follow up information on the Numbering Committee 
recommendations.

All NPA of the form 2yy-9yy (with y=y=2-8) i.e. 222,233,244...288 and
so on to 922,933,944...988 are reserved for non-geographical services.
Secondly NPA's of this form starting with 5 are for personal services
(like the 500 numbers today).  The NPA's of this form starting with 8
will be toll free. Currently the plan is to make them just like 800
i.e. exact same billing, features, ...  This will start with 888 and
as that gets close to exhaust 877 will be next, 866 on down to 822.
Each one being opened only as the previous one nears exhaust.

Why isn't 9 included in the "y" list, like 599 and 899? Because NPA's
of the form 299,399,499...999 will be reserved for expanded dialing.
So when we run out of ten digit numbers an NPA of this form will
indicate that there will be more than seven following digits.  This is
still quite a ways in the future, but it's nice to see they're at
least thinking about it.

The only thing definite about these recommendation is the 888
currently, the others are just plans and we know how they may change.
The other update to the previous mail is that the rate of assigned 800
numbers is now around 50,000 per week. It seems with the news of
exhaust people are scrambling for numbers. Can you imagine how long it
will take all PBX vendors and telcos to get this straight.



Norm Tiedemann  AT&T Bell Labs IH 2G-232
att!ihlpm!normt  2000 Naperville Rd.
normt@ihlpm.att.com Naperville, IL 60566-7033

------------------------------

Date: Mon, 6 Mar 95 21:00:50 CST
From: jkhurst@dfw.net (Jack Hurst)
Subject: Seeking GSM Contacts


I am involved in an extensive consulting project.  Seeking to make
contacts with GSM information sources -- particularly with individuals
who have managed large GSM Cellular Network installation projects.


Jack Hurst

------------------------------

From: tblog@eagle.ais.net (Tom Blog)
Subject: Home PBX Wanted
Date: Tue, 7 Mar 1995 03:27:24 GMT
Organization: Com Designs


I will be building a house soon, and am in the market for a simple
PBX. There will be three incoming lines (perhaps one dedicated to
computer/fax), serving eight to ten stations. Minimum features should
include paging, hold and pickup. Not sure how to handle answering
machine. All stations home run to punchdown block.

Any suggestions/recommendations/sales pitches welcome.


Thanks,

t blog


[TELECOM Digest Editor's Note: The way you handle the answering machine
is to assign it an extension of its own; let's say extension 21. 
Whatever
extension you assign to it, that's the same extension you want to have
the PBX use for calls when on 'night service', that is, where it rings
through to given extensions direct when no one is available. Since most
of the very small PBX things (2/3 lines, 8/10 extensions) don't have an
'operator' position as such, usually one of the extensions automatically
accepts calls be default where the caller dials zero, and usually all
incoming calls are automatically defaulted to one or two extensions 
unless
you change the 'call forwarding'. The extension to which incoming calls
are defaulted is the extension you want to have the answering machine.  
PAT]

------------------------------

From: D. Emilio Grimaldo <grimaldo@sce.philips.nl>
Subject: Help: Do You Know This Chip? Manufacturer?
Date: 7 Mar 1995 17:29:30 GMT
Organization: Philips Electronics BV.


Hello fellows,

             I have been looking around in the library at the data
books, IC index, CD ROM and yet I have found absolutely no information
on this chip, perhaps you can help me :)

The chip is marked DAA-TDK, it is a 38-pin IC for telephony. I see it
has pins for the TIP & RING signals (from telephone line) as well as
for microphone, speaker, hook relay, Tx,Rx and other unknown signals
(several Not Connected pins too). It seems the chip is also capable of
Ring Detection but don't know to what extent, probably just rectifying
the incoming signal without doing frequency discrimination.

That's all I know, I have no idea who the manufacturers is, in any
case I would like to obtain the name of the manufacturer and also the
telephone/fax numbers so that I can obtain a data sheet.

Please send responses to my email account as I can't check these
newsgroups often enough :(


Thanks in advance,

Emilio

------------------------------

From: fg8578@onr.com (Fred Goodwin)
Subject: Re: Yes, Yung'uns. CNID -is- Logged at Your Local CO
Date: 7 Mar 1995 06:35:05 GMT
Organization: Onramp Access, Inc.


In article <telecom15.137.16@eecs.nwu.edu>, bpc@netcom.com (Benjamin
P. Carter) says:

> With very few exceptions (e.g. to protect social workers who need to
> call anonymously), I WOULD be willing to deny the caller the right of
> anonymity.  I would be equally willing to let him remain anonymous if
> I had the option of blocking all anonymous calls.  In other words, I
> DON'T WANT TO RECEIVE ANONYMOUS CALLS. 

> Most anonymous callers are up to no good.  In general callers have
> too much privacy, and callees too little.  It is time to strike a
> proper balance.

> I agree, and that is why I don't want to receive anonymous calls, junk
> phone calls, repeated calls from jerks who won't leave messages, etc.

Ben: I don't know about your local phone company, but in Texas, SW
Bell provides a feature called Anonymous Call Rejection (ACR), which
does what you want, i.e., it blocks calls from those who block the
transmis- sion of their CID info ("blocks-the-blocker").  I have it,
and I'm told the caller gets a message that the person he/she is
calling (viz., ME) is not accepting anonymous calls, or something to
that affect.  In fact, my phone never rings, and my CID box never sees
anything.

You might try calling your local telco and ask if they offer a similar
feature.


Fred "No ad intended" Goodwin
Southwestern Bell   Austin, TX 

------------------------------

From: khinedi@bu.edu (Kareem Hinedi)
Subject: Re: AT&T Calling Card Mixup
Date: 7 Mar 1995 07:12:30 GMT
Organization: Boston University


Robert Scott (rbs@cs.city.ac.uk) wrote:

> Anyway, my question still stands.  Does AT&T Charge Card have an email
> address or even a fax number?

> [TELECOM Digest Editor's Note: Well, I guess you have a valid 
complaint
> alright. Apparently someone punched the wrong plan number in the 
computer
> when you signed up. I don't know of any way to contact AT&T Customer
> Service by email, but why don't you try calling them at 800-222-0300. 
You
> will get representatives who, if they cannot help you, will transfer 
to
> representatives (for the correct plan) who can.    PAT]

Since this person is in the United Kingdom, he cannot call an 800
number (unless things have changed since I lived in Europe).  AT&T's
calling card customer service number is 304-341-3020 (they will accept
collect calls from overseas).  If this person has the AT&T Universal
Card (I don't think he does, but just in case), the collect number is
904-448-8661


Kareem A. Hinedi    Boston University School of Public Health


[TELECOM Digest Editor's Note: Actually, yes people in the UK can call
800 numbers in the USA now-a-days; at least quite a few 800 numbers.
Over the past few months that has been changing quite a bit. Even if
there were not the ability to dial 800 numbers direct, services such as
USA Direct have for quite a long time accepted 800 numbers when 
requested
through the operator.   PAT]

------------------------------

From: khinedi@bu.edu (Kareem Hinedi)
Subject: Re: AT&T Offers 'International Redial'
Date: 7 Mar 1995 07:17:18 GMT
Organization: Boston University


Actually, as late as 1988 or 1989, there was no direct dial service to
Syria.  You had to "book" the call with the AT&T operator.  You would
call the operator and he or she would try up to three times.  If
unsuccesful, the operator would continue to try for up to two hours
and call you back when the call went through.  This was EXTREMELY
costly: you paid the first three minutes up front whether the party
answered or not unless you asked for person-to-person which was even
more expensive. I am sure this is still used for the few countries
which cannot be reached by direct dialing.


Kareem A. Hinedi     
Boston University School of Public Health


[TELECOM Digest Editor's Note: I think the majority -- maybe all -- of
the still non-direct-dialable places in the world from the USA are in
northern Africa and the Middle East. I think there are historic reasons
for this going back many years ago when many countries in Africa were
colonies of France. The telecom in France held very tight control over
the cables between Europe and Africa; AT&T got to use them when the
French telecom people said they could; no more, no less. I remember when
I was quite young, to call Syria, Egypt, (what we then called) the
Belgian Congo and places between there and Egypt to the north you would
ask your operator for the international operator. In turn the AT&T inter-
national operator would 'book' the call with the international operators
in Paris. I think Paris allowed AT&T to have the circuit for two or 
three 
hours each day, and there were always more calls waiting to get through 
on 
the USA side than there was time or circuits allowed. 

So when your turn in the queue came up, as often as not the next day
after you requested it or the day following, a call would be placed to
the AT&T international operator: "Hello White Plains, this is Paris,
we are ready now to attempt the call for your customer John Doe in
Chicago. AT&T would ring up the subscriber and once they got him on
the line, then Paris would try to place the call.  No matter if it was
2 pm or 2 am ... and the Paris operator would ring the operator in the
country you were calling; in turn that one would ring the operator in
the town in particular and that one would ring the local number on
their old-fashioned manual switchboard. Each of the African telephone
operators along the way were quite mystified by the fact that 'an
American is calling from the States ... '; it might well have been the
first time they had ever had such a call. Sooner or later they would
locate the party being called (telephone numbers meant nothing; maybe
someone would leave the telephone exchange building and go outside to
look for the person if he did not answer his phone). Presently the
called party would come to the phone, and the sequence would reverse
itself with each operator telling the one ahead of her that they now
had the connection established. Although Paris (and for that matter
the AT&T operator) could hear the African operators talking among
themselves, protocol and courtesy dictated that Paris wait until the
operator directly beneath her in the chain addressed her to say the
connection was now up. Then Paris would respond, "go on now, White
Plains, I have your call ready." The AT&T international operator in
White Plains, NY would tell you to proceed, 'and flash me when you are
through talking' (supervision was apparently zilch going across the
ocean). 

When you finished you would flash, and in a second or two the operator
would be back on the line, 'this is the operator, are you through?'
(or 'are you finished?') and about the same time because the connection 
was coming down through all the interim points in Africa, Paris would
see this and be back on the line asking, 'are you through?'. Now and
then however, maybe you were not finished ... maybe you got cut off in
error ... the AT&T operator would blame Paris, 'you disconnected me!'.
Paris would staunchly deny doing any such thing and blame the operator
in Africa. In fact it may have been your local exchange operator who
screwed up, but none of them down the line would ever admit it. Cost
of a five minute call to Africa in those days was about twenty to forty 
dollars. Rates of $12-15 for the first three minutes were average. All
calls were 'person to person'. The non-diable points in Africa are still 
among the most expensive calls possible.  PAT]

------------------------------

From: lnjptyo1.mberla01@eds.com (Michael Berlant)
Subject: Re: Paging Interface With Computer
Date: 7 Mar 1995 09:03:41 GMT
Organization: EDS Japan


In article <telecom15.137.14@eecs.nwu.edu>, zqhuang@sunmp.csd.hku.hk 
says:

> Does anybody know if there is a paging receiver that can be
> connected to a computer so that data received over the air can be
> sent to the computer?

Motorola has a cradle which holds a Motorola Advisor pager and
transfers received alphanumeric pages to an RS-232 line.  They were
demonstrating the system at COMDEX as a way for firefighting companies
to receive call information over the air and interface the received
page with their electronic map software in the fire truck.

------------------------------

From: ssatchell@BIX.com (ssatchell on BIX)
Subject: Re: Pair Gain Line Problem
Date: 7 Mar 95 09:16:06 GMT
Organization: Delphi Internet Services Corporation


The original question was why the "pair-gain" line restricted modem
speed to 9600 bps.

The problem is that most "pair-gain" systems use some form of ADPCM
(Adaptive Differential Pulse-Code Modulation) which reduces the
bitstream rate from the standard 64 kilobits/s to something smaller.
ITU-T G.721 (the most common pair-gain system used in US/Canada
subscriber circuits) partially obliterates phase relationships,
affecting V.29, V.32, V.32 bis, and V.34 significantally.  Other
algorithms (G.726, Oki-ECI) are less trouble but will slow down
modem connections.



France used to have a 4:1 algorithm that was guaranteed to kill
*any* phase-modulation scheme, so that the only thing that 
worked was FSK.


Stephen Satchell, Satchell Evaluations

------------------------------

From: gerryb@Eng.Sun.COM (Gerry Brown)
Subject: Re: 800 Directory Listings Wanted
Date: 6 Mar 1995 17:41:22 GMT
Organization: Sun Microsystems Inc.
Reply-To: gerryb@Eng.Sun.COM


While not a crossdirectory, The following URL is great:

            http://att.net/800

I imagine that this is just AT&T 800 numbers.

------------------------------

From: gcw@hh.sbay.org (George Wang)
Subject: Re: Motorola Flip Phone and Low Battery
Date: 6 Mar 1995 11:39:56 -0800
Organization: Hip-Hop BBS  Sunnyvale, California


In <telecom15.131.7@eecs.nwu.edu> Greg Abbott  <gabbott@uiuc.edu> 
writes:

> Another less convenient option is to buy or build a 12v battery back
> (I built a 4A pack for about $25 in a pretty nice case with a carry
> strap).  Buy the cigarette lighter plug accessory for the flip phone
> and then plug it into your battery pack.  This will give you a couple
> of days of standby and several hours of talk-time.  I use mine if I
> know I'm going to be away from the charger for awhile (like at a
> transmitter site for an extended outage or allignment session).  I
> built another one of these for my brother.  He takes it out on his
> boat on weekends and talks quite a bit with no problems at all.

Actually, Motorola sells such a battery (12V lead-acid type used in
older VHS Camcorders) with a female cigarette lighter adapter.  This
could be used to plug into your portable cigarette lighter adapter
(male plug). I believe the Motorla part number is SNN4170 (Soft-Pak
Replacement Battery). Motorola has a direct sales order line at
800-331-6456. I do not know the price.

I am not sure if Motorola officially approves of such a configuration
as this. Since the 12V battery is about the same voltage as your car
battery (Car batteries can go up to 14.5V I hear) I suppose it should
work. Just remember you also need a cigarette adapter battery cable
(SKN4292) for this to work.


George C. Wang    Email: gcw@hh.sbay.org 
Alternate: gwang@mail.ntu.edu

------------------------------

From: fvjole@xs4all.nl (Francisco van Jole)
Subject: Re: Europe Postal Services and Datacom
Date: Mon, 6 Mar 1995 23:50:35 +1000


In article <telecom15.135.2@eecs.nwu.edu> 70262.2741@compuserve.com
(Elizabeth Gardner) writes:

> I am trying to find out which European countries have postal
> services that also offer "information highway" services (for example,
> e-mail, Internet

In the Netherlands the Postal Service of the PTT exploits the most
strange 'e-mail service' I've ever heard of. You can type a message
(at the rate of about 1$ a minute) into a Videotex-system. Next the
PTT prints the message, puts it in an envelope and takes it to the
real mailbox of the receiver. The advantage they advertise with is
that you can send mail until 21.30h (normal 19.00h) that will be
delivered the next day.


Regards,

Francisco van Jole


[TELECOM Digest Editor's Note: Can't you prepare the message ahead of
time in a file, then quickly download the file in less than a minute
to save time on the costs?    PAT]

------------------------------

From: stans@panix.com (Stan Schwartz)
Subject: Re: MCI Cashes AT&T Checks
Date: 6 Mar 1995 19:52:07 -0500
Organization: PANIX Public Access Internet and Unix, NYC


Scott Lorditch (gryphon@j51.com) wrote:

> Over the past few months I've gotten several solicitations in the mail
> to switch to AT&T. One of them was in the form of a check for $40. We
> currently use MCI, so I called their customer service number. While
> they don't publicize it, MCI will redeem these checks for their face
> value in an "MCI Certificate of Savings". And further, for each month
> that I hold the certificate before cashing it, it's value increases by
> another $5, for up to 12 months. So, the useless $40 check from AT&T
> will save me $100 on my MCI bill this time next year!

Sprint did the same for me a while back -- gave me $75 in credits after 
I
sent them my AT&T check.  I showed my appreciation by switching to MCI 
for
their 50% off all calls for six months promotion.


Stan

------------------------------

From: javier@twg.com (Javier Henderson)
Subject: Re: Credit Checking on Cellular Customers
Organization: The Wollongong Group
Date: Tue, 7 Mar 1995 11:58:11 GMT


In article <telecom15.127.2@eecs.nwu.edu>, Steve Samler 
<steve@individual.
com> writes:

> What is the common practice today when someone applies for cellular
> service?  Credit check via one of the consumer credit agencies or via
> D&B if a business is the applicant?

> Is an additional credit check done if someone adds on a cellular 
modem?

> Is anyone using the practice of approving to a certain dollar limit
> and then cutting off service for the rest of the billing period if the
> limit is reached?

> [TELECOM Digest Editor's Note: A credit check is done, and a deposit
> equal to what the carrier estimates will be the charges for one or two
> months is required if the subscriber's credit rating is not up to the
> standards the carrier wants. I don't think it matters if you use a 
modem
> or not.    PAT]

There are two providers in LA: Cellular One and AirTouch. I applied
with Cellular One first, and was told I needed to come up with a
$1,000 deposit. I then called AirTouch, and was approved without a
deposit at all.

About a month later I had a chance to look at my credit reports from
the three majors: TRW, TransUnion and Equifax. All is well there, so
I've no idea with Cellular One wanted such a large deposit.

TRW showed an inquiry from both carriers, so obviously they both
looked at the same report.


Javier Henderson    javier@twg.com   

------------------------------

From: hmweine@PacBell.COM (Howard M. Weiner)
Subject: Re: Automatic Message Accounting Standard Wanted
Date: Tue, 07 Mar 1995 09:36:08 -0800
Organization: Pacific Bell Strategic Systems Architecture


In article <telecom15.128.20@eecs.nwu.edu>, telenet!emerson!ggoldman@
uunet.uu.net (Gerry Goldman) wrote:

> Can anyone tell me where I can get information on the Automatic
> Message Accounting (AMA) format. This is purported to be a Bellcore
> format for ATM billing records.

If you are referring to the generic requirements for ATM/Cell Relay
AMA, see Bellcore GR-1110.  Most of the requirements are in section
10.  If you are referring to the AMA message formats (layouts), those
are always contained for all services in GR-1100.  You really need
GR-1110 to understand the requirements for ATM related AMA, though.

For information on ordering, you can call Bellcore Customer Relations
at 1-800-521-CORE or (908)699-5800.


Howard M. Weiner   hmweine@pacbell.com

------------------------------

Date: Tue, 7 Mar 1995 11:25:14 -0700
From: Glenn Blanc <gblanc@csn.net>
Subject: Re: Anyone Heard of SMR - Specialized Mobile Radio?


In article <telecom15.118.4@eecs.nwu.edu>, murrays@clipper.robadome.com
(Scott Murray) says:

> I was wondering if anyone had any info on SMR -- Specialized Mobile
> Radio.  I have been approached by a company in Florida to buy an SMR
> channel. The channel is in the 851-866Mhz range and is used by
> companies to provided cellular like service at a cheaper rate. The
> channels are supposedly given out by the government on a first come
> first serve basis, but this company wants to charge by $3500 to file
> all the paper work and guarantees me a channel or my money back.

As others have speculated this kind of "investment" in SMR is most
likely a Scam.  I am the Director of Regulatory Affairs for OneComm
(formerly CenCall).  We are in the process of Merging with Nextel,
DialCall and Motorola to become a Nationwide Digital SMR provider.
Most of these Scams involve preparing an application that costs
$125.00 to the FCC and $200.00 to a Frequency Coordinator.  For this
the Scam operator charges $3,500-$7,000.  Several have been shut down
by the FTC (Metropolitan and Columbia in NY, DCI in California and the
SEC closed ComCoa in Florida.  The sales people just set up shop
somewhere new and the Scam goes on.  The FTC has a hot line you can
call for more info at 202-326-2527.

As others have pointed out, we can apply for the same frequencies
rather than buy or lease them from someone else.  The big thing that
these Scam operators say is that companies like OneComm will lease
channels from you for a lot of money for ever.  This is what drives
the financial analysis they show you and it is not true.  It is not
common practice in the SMR industry to lease channels.  OneComm has no
channels under lease from anybody.  The folks at Columbia/Metropolitan
sold over 4000 licenses at $7,000 each before the FTC seized them and
the court apointed a receiver.

Hope this sheds some light on the situation.


Glenn Blanc, OneComm (AKA CenCall)   303-721-3407

------------------------------

From: berz@ix.netcom.com (Leo Berz)
Subject: Save Money by Proper Use of Tariffs
Date: 7 Mar 1995 19:17:14 GMT
Organization: Netcom


Most companies are overpaying for communication services and do not even 
know it.  There are many causes for this such as: paying for services no 
longer in use, treating voice and data as seperate requirements and not 
being aware of loopholes in the tariffs.

One such loophole is FCC Tariff #1, which allows Intra-Lata facilities 
to be billed at Inter-Lata rates.  There are several requirements for 
use of this tariff, but basically you can save up to 66% of the monthly 
cost for local facilities if at least 10% of the traffic they carry is 
Contaminated, (Inter-Lata).

If you would like more information on this or other ways to 
reduce communication costs please contact Berz Enterprises at:

E-Mail: berz@ix.netcom.com
S-Mail: PO Box 620492
        Littleton CO, 80162-0492
Phone:  (303)692-4711

We are a full service Consulting company specializing in Voice/Data
Integration, Digital Network Design and Billing Audits.


Leo Berz    

------------------------------

Date: Mon, 6 Mar 95 18:24:30 MST
From: rwk@AmeriCom.com (Richard W. Kreutzer)
Subject: Long Distance Re-Billers Wanted


I am looking for companies who re-bill long distance.  If you know of
any, please reply to:

 rwk@AmeriCom.com

Regards,

Dick Kreutzer   AmeriCom Inc.

------------------------------

From: rbrown@onramp.net (Rich Brown)
Subject: Re: Book Review: "Modems Made Easy" by Hakala
Date: 7 Mar 1995 05:47:18 GMT
Organization: On-Ramp; Individual Internet Connections; Dallas/Ft Worth


In article <telecom15.121.2@eecs.nwu.edu>,Mon, 27 Feb 1995 14:09:08 EST, 
roberts@mukluk.decus.ca talked about modems being easy.

The words modem and easy should *never* be used in the same sentence!


Rich Brown     rbrown@onramp.net

------------------------------

End of TELECOM Digest V15 #139
******************************

                                                                                                            
