HDTenEightyP/NetNews huggingface dataset:
Date: Tue, 6 Oct 92 08:10:01 -0700
From: rlm@indigo2.hac.com (Robert L. McMillin)
Newsgroups: comp.dcom.telecom
Subject: Potential Telescamming at the OC Swap Meet
Organization: TELECOM Digest
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 765, Message 8 of 12

Last weekend, I went to the Orange County Swap Meet.  This affair goes
on both weekend days in the parking lots at the OC Fairgrounds, except
on those days where the fair actually runs -- about two weeks out of
the year.  They have a number (more than 200, I would guess) of tented
stalls where you can buy new merchandise, sometimes at pretty good
deals, sometimes not.  The people cleaning out their garages long ago
were priced out of the "Swap Meet" by fairly high rents and by small
businesses that generate real profits; for that reason, the operators
of the weekly event renamed it to the "Orange County Marketplace".
Some vendors have had permanent stall numbers for many years now.
These businesses are quite professional, and most take major credit
cards.  The trouble is that the people doing this simply call in the
cards for verification using cellular voice lines.  It seems to me
that this would be a terrific source of both telecom and credit card
fraud were anyone in the neighborhood to hang out with a scanner,
particularly the sort that fetches the phone ID ...
Date: Mon, 12 Oct 92 18:45:56 GMT
From: gcm@fns-nc1.fns.com (Grover McCoury)
Newsgroups: comp.dcom.telecom
Subject: Global Networking
Organization: Fujitsu Network Switching
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 778, Message 5 of 9

 From "Information Week", October 5, 1992:

"Carrying a Global Message"

  Six of the largest international telecommunications carriers signed
an agreement last week to share undersea fiber-optic capacity in an
attempt to improve the flow of global voice, video, and data
communications. Under the pact, called the Global Networking Project,
AT&T, BT, Deutsche Bundespost Telekom, France Telecom, Australia's
OTC, and Japan's Kokusai Denshin Denwa will combine portions of their
transcontinental cables to create a shared-facilities network.
 
 Many of the details have yet to be worked out. The digital
cross-connect equipment and management systems for the project are
being developed to operate with the current transmission systems as
well as Synchronous Digital Hierarchy systems. And AT&T Bell
Laboratories is working with the carriers to develop the technical
specifications and guidelines for the project. The parties hope to
have the Global Networking Project running by the end of next year.


Grover McCoury    @ Fujitsu Network Switching Of America, Inc.
  4403 Bland Road     Raleigh, NC  27609    audio: 919-790-3111
                electronic: ...!mcnc!fns-nc1!gcm
Date: Sat, 10 Oct 1992 18:36:50 GMT
From: raum@isoa3.ba.ttu.edu (Raum Pattikonda)
Newsgroups: comp.dcom.telecom
Subject: Seeking Information on SS7 Packets 
Organization: Texas Tech University
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 772, Message 6 of 11

I am not very familier with SS7 protocols. I would like to know if the
SS7 packets contain the calling card number information for the calls
made using the calling card. Can someone also please sugest a good
book on SS7.

Thanks in advance. 
 

Raum Pattikonda     Internet: raum@isoa3.ba.ttu.edu 
Dept. of Computer Science    Texas Tech University
Date: Tue, 6 Oct 92 18:38:18 BST
From: eeitecs@eeiuc.ericsson.se (Terence Cross)
Newsgroups: comp.dcom.telecom
Subject: dBm0. dBmr?
Organization: TELECOM Digest
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 765, Message 11 of 12

dBm is decibel relative to one milliwatt, so 1 mw is zero.  But what
is dBm0 and dBmr?

Are there different values in each country and how do you get these
values?


Terence Cross
From: sue@netcom.com (Sue Miller)
Newsgroups: comp.dcom.telecom
Subject: Re: Highway Call Boxes
Date: 12 Oct 92 15:17:51 GMT
Organization: Netcom - Online Communication Services (408 241-9760 guest)
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 774, Message 5 of 14

In article <telecom12.767.9@eecs.nwu.edu> lars@spectrum.CMC.COM (Lars
Poulsen) writes:

> These are stationary cellphones. Neat, huh? We have them every mile or
> so on US 101 right through downtown Santa Barbara. In fact, I think
> they are only half a mile apart in the urban area.

Yeah -- real neat.  We have them on US 101 in the SF Bay Area also.
Tried one last May when my car blew its head gasket.  No answer!!
Maybe they are just for show.  ;-)
Date: Mon, 12 Oct 1992 15:36:06 GMT
From: bill@Celestial.COM (Bill Campbell)
Newsgroups: comp.dcom.telecom
Subject: Re: Does Phone Company Log Calls to a 'Busy' Line?
Organization: Celestial Software, Mercer Island, WA
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 776, Message 1 of 14

In <telecom12.770.6@eecs.nwu.edu> jwi@world.std.com (Jazzman) writes:

> I know that most phone companies log the telephone calls made from one
> point to another.  My question is: if I tried to make a local call and
> got a busy signal, would my call attempt show up on the phone company
> (or anyone elses) log?

Bell Atlantic Cellular sure kept track in 1987 and 1988.  They would
charge $0.10 for attempts to call a busy line!  I always considered
this a rip, particularly when the busy was due to lack of lines at
Bell Atlantic.  I was always glad to get back to US West Cellular.


Bill
INTERNET:  bill@Celestial.COM   Bill Campbell; Celestial Software
UUCP:   ...!thebes!camco!bill   6641 East Mercer Way
             uunet!camco!bill   Mercer Island, WA 98040; (206) 947-5591
Date: Wed, 7 Oct 92 17:21:43 EDT
From: ken@Thinkage.On.CA (Ken Dykes)
Newsgroups: comp.dcom.telecom
Subject: Craig Shergold
Organization: TELECOM Digest
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 772, Message 11 of 11

Modem tax? did someone say modem tax? :-)      -ken, thinkage ltd.


 >From: bscott@isis.cs.du.edu (Ben Scott)
 >Newsgroups: rec.humor.funny
 >Subject: Craig Shergold
 >Date: 3 Oct 92 23:30:02 GMT

This just in -- FCC official Craig Shergold has announced new
regulations to add a fee to phone lines used for telecommunication,
including bulletin boards and public network services.  Critics say he
is still bitter from a childhood experience during which he was buried
underneath several tons of get-well cards, largely due to the
well-meaning efforts of computer users all over the world, and this
has sparked his current crackdown.

Everyone reading this message would be affected by a tax on modem
lines!  It's vital that we make ourselves heard, and stop this FCC
ruling.  Please, forward this message to as many bulletin boards and
services as you can, and encourage everyone you know to sign petitions
against this plan.  Send them to Mr. Shergold at the FCC in
Washington, DC.

                              (United Wire Services, July 2002)
From: andys@internet.sbi.com (Andy Sherman)
Newsgroups: comp.dcom.telecom
Subject: Re: LD Transmission Quality Comparison
Date: 15 Oct 92 19:40:10 GMT
Organization: TELECOM Digest
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 784, Message 2 of 10

On Thu, 15 Oct 92 12:01:10 PDT, eli@cisco.com said:

> This cannot be correct.  Propagation delay depends on media type.  The
> signal propagation speed in fiber is slower than that in coax cable, for
> example.  It must be different for pure copper wire, also.

By how much?  All of these should have propagation speeds in the
neighborhood of c.  Is the variation enough to change the echo
cancellation, or will the trunk length dominate?

But I really probably overstated the case.  The original assertion was
that the presence of fiber in the trunk path made a difference as to
whether or not you need echo cancellation.  That is false.  Any voice
circuit, analog or digital, of sufficient length will need echo
cancellation to undo the effects of the hybrids at each end.

>> Besides all that, every now and then somebody posts a throughput test
>> for the big three carriers, and AT&T almost always wins.  

> I recall Sprint winning a number of these sorts of tests.  Lately,
> in terms of audio quality, the big three are all neck and neck, to my
> ear.

Since I and most of the people who call me use the same carrier I have
no basis for comparison.  Probably they all sound similar unless you
have a very good ear.  But Higdon's modems, apparently have very good
ears, since they know the difference.


Andy Sherman    Salomon Inc  -  Unix Systems Support  -  Rutherford, NJ
(201) 896-7018  -  andys@sbi.com or asherman@sbi.com
"These opinions are mine, all *MINE*.  My employer can't have them."
Date: Tue, 6 Oct 1992 12:10:42 EDT
From: Jeff Dubin <JD2859A@AMERICAN.EDU>
Newsgroups: comp.dcom.telecom
Subject: College Phone System
Organization: The American University - University Computing Center
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 765, Message 9 of 12

Hi all, I'm a student at the American University and have a few q's
about the phone system here.  Here's some background:

Local calls are free, not even a monthly charge for local service.
This is great, but there are a few disadvantages: Can't call time or
weather services.  Apparently, the university blocks them, but no one
seems to know why.  For long distance, we have ACUS service which
prompts us for a personal ID code after we dial the number.  The
advantage of this is that there is a personal bill for each person,
not each room, and I can dial anywhere on campus.  

Now, the system is obviously a PBX-ish system, because if I try to get
a C&P operator (AU is in Wash. D.C.) I get an error tone.  The only
operator available is the campus operator, who is only there 9-5.  We
have nice stuff such as call-waiting (which only works when you did
not originate the call for some bizarre reason), three-way, etc.  For
some _other_ reason, people off campus sometimes get a busy signal
when trying to reach me when I am not on the line.

Is there any way to get a real operator?  Weather?  Etc.?  I've tried
talking to the telecom department but they seem real protective and I
feel as if they're hiding something from me.  Also, I suspect that if
I dialed an ANI or CallerID equipped phone, "my" number wouldn't show
up, but another would.  Whatever.  Thanks for all your help!


Jeff Dubin        jdubin@world.std.com    jd2859a@american.edu 


[Moderator's Note: What happens when you dial 9-0, or 9-00? Do you get
an operator that way, or re-order?  What about 9-10xxx-0?  What about
combinations like 9-411, 9-611 and 9-911?  What about 9-0-<local area
code and number>, then timing out to an operator?  If the phone
service is free, maybe they have time and temp blocked because it is a
premium service or they otherwise consider it a waste of money. If
people Direct-Inward-Dial to your extension and all the common equipment 
in the campus phone switch is in use then the caller will possibly get
a busy instead of a fast busy (no circuit) tone.   PAT]
Date: Sun, 11 Oct 1992 02:07:11 GMT
From: damon@sunburn.stanford.edu (Damon A. Koronakos)
Newsgroups: comp.dcom.telecom
Subject: Question For Michigan Residents
Organization: Computer Science Department, Stanford University.
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 772, Message 2 of 11

Hi Michigan hackers out there..

A friend of mine in Kalamazoo recently got an IBM-compatible machine.
I would like to be able to exchange electronic mail with him if
possible.

Does anyone have any suggestions about how I might establish net
access for him?  Is there something like netcom.com in the Bay Area in
the Kalamazoo area (a cheap service which provides net access)?  I
don't know if Prodigy/Compuserve-type services provide email access to
the net, how much extra (if any) this costs, etc.

Any suggestions much appreciated!!


(pls send replies to damon@cs.stanford.edu).
Damon Koronakos       baa-clone@cs.stanford.edu
From: mju@mudos.ann-arbor.mi.us (Marc Unangst)
Newsgroups: comp.dcom.telecom
Subject: Re: 911 Calls From Remote Locations
Date: 16 Oct 92 03:08:36 GMT
Organization: The Programmer's Pit Stop, Ann Arbor MI
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 785, Message 6 of 9

In article <telecom12.773.10@eecs.nwu.edu> Joseph.Bergstein@p501.
f544.n109.z1.fidonet.org (Joseph Bergstein) writes:

[Tale describing the 911 dispatcher improperly interpreting the ANI
information and dispatching the ambulance to the wrong address, due to
the PBX configuration being used.]

Ham radio operators frequently run into this when making a call to the
police or the 911 dispatcher through a repeater autopatch.  Usually,
the ham making the call will be nowhere near the actual termination
point of the line, since they're calling through a radio link.  I've
heard many stories of police/fire department/EMS showing up at an
antenna tower or a mountaintop repeater site because that's where the
ANI said the call originated from.

If you know, or suspect, that you will be connected to a E911
dispatcher who has ANI info for the number you're calling from, but
you aren't at the physical termination point of that number, it's
usually a good idea to explicitly tell the dispatcher that the ANI
info is wrong and that you're really at <such-and-such> location.
Hams also find it useful to tell the dispatcher that they are calling
over a radio link, to impress upon them that the link is half-duplex
and that they must say "over" or "go ahead" when they're finished
speaking.  Unfortunately, some E911 dispatchers will ignore both these
items and dispatch to the wrong location anyway, but at least you
tried.


Marc Unangst, N8VRH     mju@mudos.ann-arbor.mi.us
Date: Wed, 14 Oct 92 12:27:54 PDT
From: dag@ossi.com
Newsgroups: comp.dcom.telecom
Subject: Re: Question About Caller ID Information Display
Organization: TELECOM Digest
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 782, Message 1 of 12

art@aficom.ocunix.on.ca (Art Hunter) writes:

> The Caller-ID message is 1200 bps and resides between rings
> one and two.  There are two other ways that the specification says it
> can come.  One is when the handset is on-hook and is NOT ringing and
> the other is when the handset is off-hook and not ringing.  The latter
> is designed so that you can obtain the identification of the calling
> party (like call waiting) while you are talking to someone else.

> To date, I am only aware of the message between rings one and
> two as being implemented by the telcos.  It is just a matter of time
> for the other two applications to be implemented.

Is there a provision to send the infomration to a voice mail service?
I have PacBell's Message Center service on my phone and if the PUC and
PacBell ever get their respective acts together I would like to have a
voice recording of the calling party's phone number before messages
are received.


Cheers,

Darren Alex Griffiths         dag@nasty.ossi.com
Open Systems Solutions Inc.   (510) 652-6200 x139
Fujitsu Ltd.                  Fax: (510) 652-5532
6121 Hollis Street            Emeryville, CA 94608-2092
From: johng@comm.mot.com (John Gilbert)
Newsgroups: comp.dcom.telecom
Subject: Re: Stolen Cell Phone
Date: 15 Oct 92 22:25:57 GMT
Organization: Motorola, Inc. Land Mobile Products Sector
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 784, Message 6 of 10

> [Moderator's Note: I think the chances of recovering the phone are
> almost zilch. Yes, there is a nationwide negative listing that all the
> carriers see.  Most likely when the thief discovered the phone would
> not work any longer he sold it to some cell phone phreak for ten
> dollars ... :(   that person will try and modify the ESN or possibly
> use the phone for scrap parts, etc.  Sorry about your bad luck.   PAT]

A co-worker of mine had his phone stolen and recovered TWICE!  The
trick is to make sure that the phone is over the dollar limit that
allows it to go on the National Crime Information Computer (NCIC) data
base.  Since the phone was one of the early (expensive) units it
qualified and was returned by the police when it turned up at busts
for other offenses.  The police seem to be interested in returning
phones if incidental to other work, but have no interest in tracking
down a $300 phone by itself.  I don't know what the minimum dollar
limit for property to be posted on NCIC is.


John Gilbert   johng@ecs.comm.mot.com
Date: Tue, 6 Oct 1992 17:37:45 GMT
From: lai@seas.gwu.edu (William Y. Lai)
Newsgroups: comp.dcom.telecom
Subject: Help With BCH Sought For BCH Codes
Organization: George Washington University
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 765, Message 10 of 12

I have to write a proprietary protocol implementation, and the ECC
needed is a n=63, k=7 BCH code.  The polynomial was given to us as:

     X^7 + X^6 + X^2 + 1

My problems is that it has been years since I looked at these stuff,
and I can't remember how to generate/check the code.  Is there a
better way to implement it in SW rather than doing a shift-register
type of algorithm?

Any pointers, algorithm, and codes :-) are greatly appreciated!


Regards,

William Lai   email: lai@seas.gwu.edu  Dept. of Electrical Eng.
George Washington Univ.     Washington, D.C.
From: voorhis@aecom.yu.edu (Adrienne Voorhis)
Newsgroups: comp.dcom.telecom
Subject: Dialing From Bronx to Queens Within 718 Area Code
Date: 12 Oct 92 14:02:25 GMT
Organization: TELECOM Digest
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 778, Message 6 of 9

In TELECOM Digest Volume 12 : Issue 750 I ran across the following
quoted material, from <telecom12.744.5@eecs.nwu.edu>:
 
> In the 212, 718, and 917 areas, all calls within and among 212, 917,
> and 718 happen to be local (or at most message units) so there's no
> issue of 1+ for toll, and in fact you dial 1 + 718 + number to make a
> local call from Manhattan to Queens, or 1 + 917 + number to call a
> beeper or fax machine within Manhattan.

Not only that, if I make a call from the Bronx to Queens (both within
718), the call will not go through unless I dial 1 + 718 + seven digit
number.

I imagine this is also true for calls from the Bronx to Brooklyn.
Queens and Brooklyn broke off to 718 (from 212) years ago.  The Bronx
has only been added to 718 (from 212) since July.


Adrienne Voorhis    Albert Einstein College of Medicine
Bronx, New York     I'm only speaking for myself.
Date: Fri,  9 Oct 92 01:17:56 CDT
From: tjrob@ihlpl.att.com (Thomas J Roberts)
Newsgroups: comp.dcom.telecom
Subject: Re: Confused About T1 Bandwidths
Organization: AT&T
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 767, Message 2 of 17

rfranken@cs.umr.edu wrote:

> (A third method is to guarantee that your source will never send two
> many zeros consecutively.  This is generally not possible with
> computer data, which could be anything.)

Actually, it is quite common to do this. Any protocol using inverted
HDLC (or any of its variants) will automatically satisfy the 1-density
requirements. This includes X.25, which is probably the most popular
access protocol in use today (and also X.75, its inter-network
variation).


Tom Roberts	att!ihlpl!tjrob		TJROB@IHLPL.ACC.COM
Date: 12 Oct 92 15:20:55 GMT
From: julian%bongo.UUCP@nosc.mil (Julian Macassey)
Newsgroups: comp.dcom.telecom
Subject: Re: Sidetone (was LD Transmission Quality Comparison)
Reply-To: julian@bongo.info.com (Julian Macassey)
Organization: The Hole in the Wall  Hollywood California U.S.A.
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 12, Issue 777, Message 7 of 7

In article <telecom12.760.5@eecs.nwu.edu> rickie@trickie.ualberta.ca
(Richard Nash) writes:

> In the good old days, the 2500 set could be ordered up without
> sidetone.  This was some kind of a military specification that
> improved communications in less than ideal environments.

	There was a simple reason this set had no sidetone. It had no
hybrid. It was a four wire device for use on a four wire system. You
got no sidetone, no echo and no singing. So yes, it worked in crummy
throw em up in a hurry environments.

	And as I am sure Mr. Higdon can tell us, nulling a hybrid for
0 sidetone -- or the best you can get -- is a tricky act. The null
will shift for every call made requiring a null every time a call is
established. Modern DSP hybrids such as the Telos used in call in
shows does this on the fly.


Julian Macassey, julian@bongo.info.com  N6ARE@WA6FWI.#SOCAL.CA.USA.NA
742 1/2 North Hayworth Avenue Hollywood CA 90046-7142 voice (213) 653-4495

Newsgroups: comp.dcom.modems
From: tmkk@uiuc.edu (Khan)
Subject: Re: SupraFAX problems (user naivete?)
Organization: University of Illinois at Urbana
Date: Wed, 14 Oct 1992 20:53:25 GMT


In article <7246@transfer.stratus.com> nick@sw.stratus.com (Nicolas Tamburri) writes:
>
>Now the bad news/problems:  I had been using a DSI 9624le+ to dial-up an
>identical one at work.  I have always connected at 9600 without problems,
>using kermit and XON/XOFF protocol, computer to modem speed 9600 baud.
>When I try this configuration dialing up the DSI, using the cable that came
>with the modem and hardware handshaking, the modem connects, and
>then I get garbage characters all over my screen, along with some recognizable
>output.  If I go to 14400 computer to modem, the modems connect at 14.4, but
>then I get no output just garbage.  (BTW all this is with the default AT&F2
>configuration,

The manual says that Mac users should use &F1, not &F2, since Mac serial
cables have no hardware flow control (or something like that).

Try it and see if it works.

Newsgroups: comp.dcom.modems
From: maxc1169@steer.sdsu.edu (Yuan-chi Chiu)
Subject: Buying a High Speed Modem
Organization: SDSU Computing Services
Date: Wed, 14 Oct 1992 23:02:18 GMT

Hello,

    I have roughly $250 to spend on a high speed modem.

    I have read many posts and replies regarding many types of modem.  I have
read about Boca 14,4k, Supra 14,4k, Zyxel modems, USR Sportster 14,4.

    I'll try to get the best modem possible and I'll even look for wholesale
prices.  Which modem would you recommand around my price range.  If you know
any place (or any deal) that's around, I'm very interested in them.  Anything!

    Basically I want 9600 or 14,4K transfer speed.  Duel standard (sportster)
is not very important, but would be nice.  I might want the FAX ability.  But
"Caller ID" and "Voice" (what's voice?) is not important.

    Most importantly is that the modem should be able to connect and maintain a
steady transmission with the most host modems without overheat, going crazy,
or incapable of connecting at high speed baud rate, etc.

    Please flood me with your opinions. 
-- 
___________________________________________________________________________
   Yuan-chi (Bill) Chiu.   maxc1169@ucselx.sdsu.edu.   Amiga Enthusiast.
___________________________________________________________________________
If you take any activity, any art, any discipline, any skill, take it and