TELECOM Digest Tue, 15 Mar 94 23:38:00 CST Volume 14 : Issue 132
Inside This Issue: Editor: Patrick A. Townson
Questions About GMRS Radio (TELECOM Digest Editor)
Strange Meridian Mail Problem (Richard Hyde)
The Final C/Fest.594 Reminder (Dave Skwarczek)
Experiences With VSAT Communications (Shanliang Yin)
CDPD, PCS, PCN, and Digital Cellular? (Dan Leifker)
Wireless T-1 (Eric A. Litman)
Voice Mail\FAX\Data Software (Mitch Rosenberg)
Motorola Announces ITS PDA (Herd Beast)
APS Alliance? (A.N. Ananth)
Information Request - Time Off of NT-Opt61 (Greg Maples)
BBS in Switzerland (Eric Jolley)
Appel a` Communications Pour CFIP'95 (*in French*) (Jean-Marc Jezequel)
Re: Cordless Telephone Output Power (Dave Held)
Looking For a Piece of Telephone Equipment (Harold Hubschman)
Re: Setting up a 900 Number (Bick Truet)
Re: Mr. Watson, Come Here ... (Russell Blau)
TELECOM Digest is an electronic journal devoted mostly but not
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Date: Tue, 15 Mar 94 23:01:29 CST
From:
[email protected] (TELECOM Digest Editor)
Subject: Questions About GMRS Radio
I have here a type of transceiver with which I am not very familiar and
am hoping Digest readers can enlighten me on its proper use and what is
to be expected of it.
It is a UHF handheld transmitter with two channels. What very little
documentation I have for it says that it is intended for use in the
'Personal Radio Service' on 462.7125 and 462.6375 mhz. Furthermore the
very skimpy documentation (some notes that someone wrote out longhand)
state that FCC licenses will be granted to operate on any of these
eight frequencies:
462.5500 462.5750 462.6000 462.6250
462.6500 462.6750 462.7000 462.7250
But ... the transceiver has none of those frequencies; instead it has
the two mentioned above and these are referred to as two of the seven
'interstitial' channels on which a licensed station may operate.
The antenna for this radio is a little stubby thing about two inches
long. It is a 'rubber ducky' type antenna, I assume loaded if it is
that short in the 462 mhz range. In one place on the radio it states
that output power is one watt, yet in the documentation is the notation
that 'output power = 50' (copied verbatim from the notes).
What is all this about? Making the general assumption about radio
(which I assume is true in this case also) that the antenna is 80-90
percent of what radio is about, what is the range over which this will
typically transmit? It is a tiny little handheld thing, and looks
much like a CB 'walkie talkie'.
Tell me what you know about these transceivers: range, use, etc.
Thanks very much.
Patrick Townson
------------------------------
From:
[email protected] (Richard Hyde)
Subject: Strange Meridian Mail Problem
Organization: NETCOM On-line Communication Services (408 241-9760 guest)
Date: Wed, 16 Mar 1994 00:12:01 GMT
Help, please, with a strange Meridian Mail problem.
I have multiple incoming lines divided into an (800) group and a local
(408) group.
I have an extension, 520, that is associated with a time-of-day-controller.
I have two time-of-day-controllers programmed but only one is in use
at a given time.
TODC 1000 is associated with three Voice Service IDs:
VSI 1001 = business day message
VSI 1002 = Evening/Weekend message
VSI 1003 = Holiday message
TODC 2000 is associated with one Voice Service ID
arranged as follows:
VSI 1004 = Business day message
VSI 1004 = Evening/Weekend message
VSI 1004 = Holiday message
In normal operation TODC 1000 is switched in and the system operates
normally. Each of the VSIs kicks in at the appropriate time and
becomes the default recorded announcement that the customer hears.
Callers on the 800 number always hear the recorded announcement.
Callers on the 408 number always get the attendant console unless the
console is in night mode, then they get the recording. So far, so
good.
Now, the TODC 2000 VSI (1004) contains an emergency message notifying
all callers that our system is currently unavailable.
When I use Remote Activation to change the TODC for x520 from 1000 to
2000, the 800 number behaves correctly at all times, but the 408
number still recites the 1002 message during evening/weekend hours.
The console is, of course, in night mode when this happens.
I can't, for the life of me, figure out what I've done wrong.
Any Meridian Guru's out there?
For extra credit, customers occasionally report getting the *holiday*
message at inappropriate times!. I've never been able to duplicate
this one :-(
Thanks for the help!
Richard Hyde
[email protected]
------------------------------
From:
[email protected] (Dave Skwarczek)
Subject: The Final C/Fest.594 Reminder
Date: 15 Mar 1994 18:23:32 -0600
Organization: MCSNet Subscriber, Chicago's First Public-Access Internet!
Here's the final reminder about Cyberfest.594. I've been hard at work
planning all this, and it's finally nearing fruition!
If you haven't read anything about it, here's the scoop. Cyberfest.594
will be Chicago's first ever cyber/club event -- featuring VR,
graphics, video, MIDI, gaming and telecommunications hardware and
software; two live electronic bands; and cyber-art from local and
national cyber-artists -- all packed neatly into one of the largest
nightclubs in the city. A true socio-technological blowout.
The official "who/what/when/where" announcement will take place NEXT
MONDAY, MARCH 21 at every Usenet board on which this message appears.
For the companies/pioneers/sigs/zines that have received their
registration folders: Deadline for registration is this Friday, March
18! If you missed the mail boat, we can still fax you info on the few
remaining exhibit spaces.
If you're a 2D/3D/video/audio/whatever cyber-artist interested in
having some work out and about at the event, send me some email! April
1 is our deadline for artists' submissions.
Thanks,
dave
[email protected]
------------------------------
From:
[email protected] (Shanliang Yin)
Subject: Experiences With VSAT Communications
Date: 15 Mar 1994 20:56:36 GMT
Organization: University of Michigan, Ann Arbor
Hello,
I was wondering if anyone has had any experience using VSAT
(satellite) communications to inter connect WAN instead of using
lease-lines from IXC? Does current equipment support VSAT
communications effiectively, how does the cost compare with the usual
terrestrial lease-line option? Also, any experiences using VSAT to
connect WANs internationally? (the cost of a lease line seems so high
for an international circuit!)
I know Hughes Network Systems offers such services. Are there any
other providers out there (I'm sure there are ...)? I'm looking into
connecting a WAN I the US to another one in Asia.
Any suggestions, advice, experiences ... all are welcome :)
slyin Shan-Liang Yin
------------------------------
From:
[email protected] (Dan Leifker)
Subject: CDPD, PCS, PCN, and Digital Cellular?
Date: 15 Mar 1994 21:21:37 GMT
This is a quick question to anyone familiar with wireless
communications. I am taking an introductory (grad level) course in
telecommunications, and the professor has asked us to write a short
paper defining the following terms: digital cellular, CDPD, PCS, PCN,
and wireless.
I have been scouring the area (Washington, D.C.) and have found almost
nothing in the way of technical literature. Could some kind soul
outline the differences between these terms and give me some pointers
for more information? Are these things in a competitive sort of
relationship? (I'm not asking anyone to do my work ... I'm just
looking for a starting place.)
Thanks,
Dan Leifker
[email protected]
------------------------------
From:
[email protected] (Eric A. Litman)
Subject: Wireless T-1
Date: 15 Mar 1994 18:32:23 -0600
Organization: Proxima, Inc.
I recall reading several months ago about a device (possibly RF)
allowing 1.5MB/s and greater speeds at distances of a mile and more.
Is anyone familiar with such a beast? Vendor responses welcome.
Eric Litman Proxima, Inc. vox: (703) 506.1661
Systems Engineer McLean, VA
[email protected]
------------------------------
From:
[email protected] (Mitch Rosenberg)
Subject: Voice Mail\FAX\Data Software
Date: 15 Mar 94 14:44:52 GMT
Organization: MIND LINK! - British Columbia, Canada
Has anyone has succes with a FAX ON DEMAND application for windows?
I'm planning on purchasing a 14.4 with voice capabilities, as I hope
to use the voice mail and FAX ON DEMAND features for a home based
business.
I understand Zyxel has a bundled software package (but I don't plan on
paying Zyxel's sticker price!), and I hear BitComm has a voice mail
and FOD app as well.
While I'm at it ... suggestions for a FAXodem with voice would be
appreciated as well.
Thanks,
[email protected]
------------------------------
Subject: Motorola Announces ITS PDA
From:
[email protected] (Herd Beast)
Date: Tue, 15 Mar 94 10:14:30 EST
Organization: [MindVox] / Phantom Access Technologies / (+1 800-MindVox)
Motorola has announced its own PDA -- Envoy. Envoy is the first in a
series of products will announce soon, and will compete against
products of Apple (newton), IBM (Simon) and AT&T/Eo.
The Envoy can be used for voice, text, or FAX messages and can
communicate with other Envoys, FAX machines and modems, over telephone
lines or wireless communication. The Envoy also includes a personal
financial program, address book, worksheet, and watch programs.
The Envoy includes a small wireless modem for the wireless communications.
It is compatible with the IBM/Motorola Ardis wireless PSN.
Envoys communicate with each other using infrared (like Newtons) and
have two PCMCIA slots.
The Envoy uses the MagicCap operating system (by General Magic). It's
controlled by a digital pen, or by tapping on the screen. The pen can
be used for writing messages and FAXing them. Unlike the other
products, the Envoy doesn't have a handwriting recognition feature.
It weights about half a kilo, 18 centimeters tall, 14 cms wide and
less than 3 cms high.
H3rb
------------------------------
From:
[email protected] (A N Ananth)
Subject: APS Alliance?
Date: 15 Mar 1994 10:43:29 -0500
Organization: Prism Communications Inc, Annapolis MD
Recent reports talk of an effort called the Asynchronous Protocol
Specification (APS) alliance which is developing a protocol to be
presented to the ITU (formerly CCITT) to let individuals link
mail-enabled applications to any type of wireless networks.
Members are said to include Microsoft, Apple & DEC with Intel selected
to come up with a draft. The founder is said to be Dave Knight, VP of
ISOCOR. The article also mentions a group called the Electronic
Messaging Association with Bill Moroney as executive director.
Can anyone shed more light on this or better yet provide a pointer
to papers or people? Thanks in advance.
ananth <
[email protected]> Phone: (410) 765-9281 Prism Communications Inc
------------------------------
From:
[email protected] (Greg Maples)
Subject: Information Request - Time Off of NT-Opt61
Organization: Netcom - Online Communication Services (408 241-9760 guest)
Date: Wed, 16 Mar 1994 01:58:14 GMT
Help!
I'm trying to get time synchronization running between our NT OPT61
pbx and a Sun SS10. I'm aware that I could use nxtp for synchro in
the Unix world, but we are not directly internet connected, and xntp
is a big load of code.
Does someone know of an easy, simple method of getting the NT to set
the Sun or vice-versa? Is there a version of timed for the Sun
(4.1.1)? Do I sound clueless? Sigh ... (I hate voice).
Please send mail responses to:
[email protected]
Thanks!
------------------------------
From:
[email protected] (Eric Jolley)
Subject: BBS in Switzerland
Date: 15 Mar 1994 00:53:18 -0700
Organization: University of Utah Computer Center, Salt Lake City, Ut.
I am trying to connect to a BBS in Bassersdorf, Switzerland, but I
think I may be dialing the number wrong. The number is listed as:
0041-1-8364174. I am dialing from the U.S., and my LD carrier is
AT&T, so I am dialing 011-41-1-8364174, but I get a "cannot complete
call as dialed" message. I assume I am missing some digits, but which
ones? If it is the 00 before the 41 for Switzerland, where do they
go? Any help would be appreciated.
Eric Jolley
[email protected] Film Studies Major, U. of U.
------------------------------
From:
[email protected] (Jean-Marc Jezequel)
Subject: Appel a` Communications Pour CFIP'95 (*in French*)
Date: 15 Mar 1994 08:38:17 GMT
Organization: Irisa, Rennes(FR)
[If you don't understand French, you would not be interested in this]
Appel aux communications
Colloque Francophone sur l'Ingenierie des Protocoles
9-12 mai 1995 - Rennes - France
Comite de Programme
Presidents :
Claude Jard (IRISA, France) et Pierre Rolin (Telecom-Bretagne, France)
Membres :
Paul Amer (Universite du Delaware, Etats-Unis)
Bennani Abdelfdil (ENSIAS, Maroc)
J. William Atwood (Universite de Concordia, Canada)
Benkiran Amine (EMI, Maroc)
Mohamed Bettaz (Universite de Constantine, Algerie)
Ed Brinksma (Universite de Twente, Pays-Bas)
Stanislaw Budkowski (INT, France)
Richard Castanet (LaBRI, France)
Ana Cavalli (INT, France)
Wojciech Cellary (EFP, Pologne)
Andre Danthine (Universite de Liege, Belgique)
Piotr Dembinski (Academie des Sciences, Pologne)
Michel Diaz (LAAS, France)
Rachida Dssouli (Universite de Montreal, Canada)
Jean Marc Farines (UFSC, Bresil)
Serge Fdida (MASI, France)
Alain Finkel (ENS Cachan, France)
Roland Groz (FT/CNET, France)
Farouk Kamoun (ENSI, Tunisie)
Jacques Labetoulle (Eurecom, France)
Guy Leduc (Universite de Liege, Belgique)
Francis Lepage (CRAN, France)
Luigi Logrippo (Universite d'Ottawa, Canada)
Gerard Michel (IMAG, France)
Pascale Minet (INRIA, France)
Abdellatif Obaid (Univ. du Quebec a Hull, Canada)
Omar Rafiq (Universite de Pau)
Behcet Sarikaya (Universite de AIZU, Japon)
Andre Schiper (EPFL, Suisse)
Samir Tohme (ENST, France)
Gregor von Bochmann (Univ. de Montreal, Canada)
L'idee du Colloque Francophone sur l'Ingenierie des Protocoles qui a
deja eu lieu par trois fois (1988, 1991 et 1993), est de permettre a
la communaute francophone des enseignants, chercheurs et industriels
dans le domaine des protocoles et reseaux informatiques, de faire
regulierement le point en langue francaise. Le colloque comprend une
journee de tutoriels, suivie de trois jours de conference.
Le comite de programme souhaite se voir soumettre des communications
qui traitent de tout sujet relatif au developpement des protocoles de
communications. La liste non exhaustive qui suit, donne quelques
points qui peuvent etre traites :
- Conception, mise en oeuvre et gestion de reseaux et d'architectures
de communication ;
- Techniques et langages de specification ;
- Techniques et outils de verification et de simulation ; application
de ces techniques ;
- Mise au point et integration des logiciels repartis dans les
systemes ;
- Architectures, methodes et outils de test de conformite et
d'interoperabilite ;
- Methodes formelles ou pragmatiques couvrant l'ensemble des etapes de
developpements des protocoles ;
- Conception et developpement de protocoles a haut debit ;
- Modeles, evaluation et mesure de performances des reseaux ;
- Conception, developpement et application multimedia dans les reseaux
- Reseaux de mobiles ; reseaux radio ;
- Securite dans les reseaux ;
Le comite de programme souhaite recevoir des communications de la part
d'universitaires, de chercheurs et d'industriels. Des articles de
syntheses didactiques, des exposes de travaux de recherches theoriques
et d'experiences pratiques sont attendus, ainsi que des propositions
d'exposes pour les tutoriels.
Les publications emanant de jeunes chercheurs sont particulierement
les bienvenues. Un prix recompensera la meilleure publication. Les
meilleures publications seront publiees dans des revues.
Un espace sera disponible pour des demonstrations, le comite de
programme sollicite des propositions sur les themes ci-dessus.
Instruction aux Auteurs
-----------------------
Si vous desirez soumettre une communication (12 pages maximum) ou un
tutoriel, veuillez envoyer cinq exemplaires de l'article complet,
avant le 1er septembre 1994, a :
Pierre Rolin (Telecom-Bretagne, France)
Telecom-Bretagne
Antenne de Rennes
Departement RSM
Rue de la Chataigneraie
BP 78
35512 - Cesson - Sevigne cedex
FRANCE
Tel : +33 99 12 70 21
Fax : +33 99 12 70 30
email :
[email protected]
Les decisions du comite de programme vous seront notifiees le 15
janvier 1995. Pour etre publiees dans les actes du colloque les
versions finales des articles doivent parvenir avant le 15 fevrier
1995.
Dates a retenir
---------------
1er septembre 1994 : date limite pour la reception des articles
soumis.
15 janvier 1995 : notification aux auteurs de la decision du comite de
programme.
15 fevrier 1995 : date limite pour la reception des textes definitifs
a inclure dans les actes du colloque.
Comite d'organisation
---------------------
Jean-Marc Jezequel (IRISA) Sylvie Brunet (Telecom-Bretagne)
Noel Plouzeau (IRISA) Elisabeth Lebret (IRISA)
Joseph Fromont (CCETT) Marie-Noelle Georgeault (IRISA)
Alain Leger (CCETT)
Jean-Marc Jezequel, IRISA/CNRS, 35042 RENNES (FRANCE)
[email protected]
------------------------------
From:
[email protected]
Subject: Re: Cordless Telephone Output Power
Date: Tue, 15 Mar 1994 08:04:21 -0500
Organization: Delphi (
[email protected] email, 800-695-4005 voice)
<
[email protected]> writes:
> 2) even if it was legal, why does everyone want to increase the output
> power? There is probably more room for increasing the receiver sensitivity
> which would have the same effect. For instance, a cheap FET between the
> antenna and the receiver chip could add at least 10 dB of sensitivity,
> if you know what your'e doing.
Those who want to raise transmitter power (not me, the other guys) are
trying to compete against co-channel interference from other cordless
phones. Boosting receiver sensitivity won't help. I might also add
that simple receiver mods (such as your front-end FET) will have a lot
of trouble due to the duplexing problem; i.e., a FET connected to the
antenna as an RF preamp will be overloaded by the phone's own
transmitter which is also connected to the same antenna.
I have recommended against transmitter mods for a number of reasons:
engineering difficulty, receiver desensing (the other half of the same
duplexing problem), and battery life, not to mention philosophical
complications such as federal law, harmful interference to other
legitimate users, and the ultimate unlikeliness of achieving
satisfactory longer-range performance.
Dave
------------------------------
From:
[email protected] (Harold Hubschman)
Subject: Looking For a Piece of Telephone Equipment
Date: 15 Mar 1994 11:46:30 -0500
Organization: Thinking Machines Corporation
I'm wondering if the following device exists:
I have two telephone lines into my home. I would like to hook up a
gadget between them that will allow me to phone in on one line on a
touch tone phone, have this device answer, and then let me initiate a
call out on the second line.
Is such a device commercially available? Any ideas where to get one
(and what it is called?)
Thanks,
hh
[TELECOM Digest Editor's Note: Those devices are called 'WATS extenders'
or 'call extenders' and they have been around for *years*. I think the
'Hello Direct' people sell them (1-800-HI-HELLO) along with quite a few
other telecom supply houses. But whatever you do if you choose to install
one: keep yourself covered! Install a difficult and *long* passcode on
it or else hackerphreaks will eat you alive with fraud charges. PAT]
------------------------------
From:
[email protected]
Subject: Re: Setting up a 900 Number
Date: Tue, 15 Mar 94 13:38:12 -0500
Organization: Delphi (
[email protected] email, 800-695-4005 voice)
Tauren N Mills <
[email protected]> writes:
> I am investigating setting up a 900 number for my business, but cannot
> justify the $2500 installation fee that AT&T wants, plus the $1000 per
> month. Does anyone know of any outfits that will rent 900 numbers?
> I don't want to rent one that is already set up and all you have to do
> is advertise. I need my own information to be available.
Tauren:
You may want to contact some of the consultants and/or service bureaus
that support the 900 industry including: Telco Planning, MicroVoice
applications, Brite Voice, etc. If you need telephone numbers, I'll
be happy to provide them.
Bick Truet TRG Clinton, NJ 908.730.9050
[email protected] [email protected]
------------------------------
Date: Tue, 15 Mar 1994 15:29:29 EST
From: Russell Blau <
[email protected]>
Subject: Re: Mr. Watson, Come Here ...
In a recent article, John R. Levine <
[email protected]> said:
> The building in Boston where Bell and Watson did their work has long
> since been torn down to build a government office, but the site is
> marked by a small granite shaft and a pair of payphones.
Yes, the building is gone, but Bell's restored workshop including some
of his original equipment can still be seen in the lobby of the New
England Tel (ooops, excuse me, NYNEX) building at 185 Franklin Street
in Boston. It's like a little shrine to the Creator, complete with
pre-recorded narration and little brochures you can take home. Definitely
worth a visit if you are in Boston.
------------------------------
End of TELECOM Digest V14 #132
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