
From telecom-request@delta.eecs.nwu.edu  Fri Sep 22 00:16:48 1995
by
1995
00:16:48 -0400
telecomlist-outbound; Thu, 21 Sep 1995 20:07:09 -0500
1995
20:07:07 -0500
To: telecom@eecs.nwu.edu


TELECOM Digest     Thu, 21 Sep 95 20:07:00 CDT    Volume 15 : Issue 400

Inside This Issue:                           Editor: Patrick A. Townson

    100 Years of Wireless IEEE/VTS One Day Seminar (Brenda Generali)
    New Internet/Telecom Product/Technology Wanted (Jack Decker)
    Re: Eliminate Dialing Weirdnesses - We Can Save Lives (Tom Watson)
    Hi-Speed via POTS (Robert Ricketts)
    Re: Euro Dialable Wideband Service (Chip Sharp)
    IS95 Standard (Hans Peter Oestergaard)
    Re: FBI Arrests America OnLine Users (Art Walker)
    Is the 600 NPA is Use Already? (Jan Joris Vereijken)

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



IEEE/VTS ONE DAY SEMINAR AT SRI INTERNATIONAL
November 3, 1995

100 YEARS OF WIRELESS

MARCONI'S DAUGHTER IN THE BAY AREA FOR THE CENTENNIAL OF RADIO

The San Francisco Bay Area IEEE/Vehicular Technology Society (VTS) is
sponsoring a One Day Seminar as part of the international events
commemorating Marconi and the centennial of radio.  The Bay Area VTS
seminar will coincide with the international events sponsored by the
Amici dell'Italia Foundation during Italian week, dedicated to
Guglielmo Marconi, and in cooperation with the Italian Consulate
General in San Francisco and the Amici dell'Italia Foundation.

The significance of this event is that it brings together industry and
academia experts from the United States and Italy, two of the worlds
Marconi connected with the first radio transmission across the Atlantic 
Ocean in 1901.

The VTS seminar "100 Years of Wireless" will take place on November 3rd 
at
SRI International in Menlo Park, California.  Marconi's Daughter, Gioia
Marconi Braga, will be the luncheon speaker.

Dr. William C.Y. Lee, Vice President and Chief Scientist at AirTouch
Communications, will be the keynote speaker.  The theme of the seminar
will span from historical to leading edge wireless technical 
presentations 
by the worlds foremost authorities.

Several of the speakers are members of the California scientific 
community
who share the honor or having been awarded the prestigious Marconi
International Fellowship in recognition of "significant contributions 
made to
the advancement of the technology of communications or knowledge 
transfer
through scientific or engineering discoveries, inventions or 
innovations".

This one day event is an extremely rare opportunity to meet Marconi's
daughter and listen to her first hand recollections of her father.  It 
will
also be an extremely rare opportunity to hear from the world's foremost
wireless and communications experts, some of whom are recognized in 
history
for their inventions and contributions.

The VTS November 3rd "100 Years of Wireless" seminar is one of many
significant international events.  The Guglielmo Marconi Foundation, 
based in
Bologna Italy where Marconi conducted his early experiments, is 
spearheading
many other international events.

Last June, Bologna was the site of a radio astronomy exhibit "Radio, 
From
Marconi to the Music of the Stars" and the Marconi International 
Fellowship
Symposium during which the President of Italy conferred the 1995 Marconi
Prize.  Also in June, the Bologna Radioexpo Exhibition hosted a 
spectacular
show on radio diffusion.  This show will be in New York at Columbia
University in October.

An itinerant exhibition entitled "100 Years of Radio" will be in Rome 
between
September 30 and December 10 and in Stockholm later in December during 
the
conferment of Nobel Prizes.

In the fall, Bologna University will host the 1995 European Microwave
Conference, the first European Personal and Mobile Communications 
Conference
and the 34th FITCE European Telecommunications Congress.  Premiere 
Italian
scientific organizations will host a conference during December on 
"Marconi
and the Organization of Scientific Culture" to be held in Rome.

The UK IEEE will hold an international conference on "100 Years of Radio
History" in London, September 5-7, in honor of Marconi patenting his
invention there in 1996 and founding the Marconi Telegraph Company.

SEMINAR PROGRAM
"100 YEARS OF WIRELESS"

8:00 AM - Registration

8:30 AM - Welcome by Clay Maynard, Chairman, San Francisco Bay Area 
IEEE/VTS

* Welcome by Giulio Prigioni, Consul General of Italy in San Francisco

* Keynote Speaker Dr. William C.Y. Lee, Chief Scientist and Vice 
President of
Applied
 Research & Science, AirTouch Communications
 (Will Wireless Communications Come to an End?)

* George Hagn, Senior Staff Advisor SRI Information, Telecommunications 
&
Automation.
 (Historical Timeline of Early Wireless Communications)

* Gabriele Falciasecca, Chairman Department of Electronics & Computer
Science,
 Bologna University.  (The New Wireless Wave)

* Dr. Federico Faggin, CEO of Synaptics
 (The Role of Semiconductor Technologies in Telecommunications)

* Pietro Masarati, Managing Director Projecta Roma and former CEO of 
Italian
Space   
 Manufacturing
 (Microwave Links and Radio Loops for the New Telecom Operators in 
Italy)

* Gioia Marconi Braga (Memories and Reflections of my Father, Guglielmo
Marconi)

* Paul Baran, Com21, Chairman of the Board
 (Is the UHF Frequency Shortage a Self Made Problem?)

* Dr. Andrew J. Viterbi, Qualcomm, Vice Chairman and Chief Technical 
Officer
 (Toward the Global Village:  Universal Digital Wireless Communications)

* John R. Pierce, Visiting Professor, Center for Computer Research and
Acoustics,
 Stanford University (The Electronic Information Flood:  Amount and
Usefulness)

* Randy Katz, Computer Science Department, UC Berkeley
  (Current Technology Developments in Wireless Communications and Mobile
Computing)

* A. Paulraj, Department of Electrical Engineering, Stanford University
 (Directional Antennas in Glace Bay to Smart Antennas in Cellular 
Networks: 
90 Years of Radio Antennas)

* Donald Cox, Department of Electrical Engineering, Stanford University
 (Wireless Personal Communication:  A Technology Perspective)

* Concluding Remarks, Clay Maynard

5:30 PM - Depart Seminar

IEEE/VTS Marconi
Seminar Registration

General registration: $150
Full-time student:  $75
Registration after 10/25/95, add $50

Name ________________________________

Company ______________________________

Address ______________________________

City/State/Zip _________________________

Phone ________________________________

Fax __________________________________

Amount Included _______________

Make checks payable to: IEEE/VTS

Mail to:  
IEEE/VTS Seminar Registration
700 Welch Road, Suite 2205
Palo Alto, CA  94304
(415) 327-6622

Information:  1 (800) 800-IEEE (4333)

Seating will be limited.  To ensure availability, please register early. 
Registration fee includes a copy of the seminar notes, coffee/pastries 
and
luncheon (student rate does not include the luncheon).

Rooms at the Holiday Inn, Palo Alto, Stanford, are available at $106 per
night single and $116 double.  Reserve by October 15 to obtain seminar 
rate.
(415) 328-2800, fax (415) 327-7362.

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



I would like to offer up a suggestion for a product, or perhaps I
should say a technology.  This is an idea that I had that is really an
extension of existing products, but I want to go on record as
proposing this now so that when someone gets the bright idea in a few
months or years, I can point to this as "prior art" (the Telecom
Archives ARE permanent, aren't they?).  :-)

The idea is this: At some point on the Internet you have a server that
connects to the telephone network.  It can detect ringing and seize
(answer) the line, or it can pick up the line and initiate outdialing.
So far all of this can be done using existing products (modems, for
example).  But what I would then propose for this new technology is to
take the audio from the phone line and convert it into an audio data
stream that can be sent to another location on the Internet.  In a
similar manner, this product should be able to accept an audio stream
from the Internet and send it out to the phone line.

On the user (client) end, a companion product (designed to work with
the server) would operate similar to IPhone or another two-way voice
over Internet product, except that when the server receives a ringing
signal from the telephone line, it would sent a data packet to the
user's program that would cause an audible (or other) signal to sound
or appear on the video display of the user's computer.  The user could
then take some action to "answer the phone" by causing the server to
take the phone line offhook and start the audio streams flowing, and
the computer user would then be able to hold a conversation with the
telephone caller.  Or, if the user wished to make an outgoing call,
they could enter a number to be called and then take some action
(keypress, mouse click, etc.) that would cause information to be
transmitted via the Internet that would cause the server to take the
line offhook, dial the requested number using touch tones or dial
pulses, and then start the audio data streams flowing, permitting the
user to converse with a called party.

In this situation, the telephone line would come into one location
that is connected to the Internet, and the user of the line could be
almost anywhere else on the Internet.  They'd be able to answer an
incoming call, or place an outgoing one, and then talk using an IPhone
or similar type interface.  Depending on the user's hardware (sound
card) and preference, the connection could be half duplex (either
"press a key/button to talk" or VOX type operation), or nearly
full-duplex (I say "nearly" because there would be a slight delay
inherent in sending audio streams via the Internet).

For those familiar with amateur radio phone patches, this would be a
similar type of connection, except that instead of connecting a
telephone line to a radio transceiver, it would connect to a device
that converts digital audio data streams sent via the Internet to and
from analog signals compatible with the telephone line.

I would expect that there would be some sort of authentication between
the client and server sides, probably in the form of a password
required to use the server (which would be sent automatically any time
a command was sent to pick up the line).  And care would have to be
taken that once a connect was initiated, no other user could "break
in" and grab the open line.  On the other hand, the server should be
capable of accepting connections from more than one client (and
multiple passwords, in case more than one user should be allowed to
have access to the server, and you want to have an accounting of which
user was connected at any particular time).

The uses should be obvious ... any time you want to answer a phone
line or place a call from a remote location that has an internet
connection, and don't care about a slight time delay (which might be
pretty minimal on some connections), this technology could be used.
Assuming decent connectivity, the connection (from the telephone side)
should sound no worse than, say, a patched call from a two-way radio
(or even from some cellular phones!).

Basically, this would be the equivalent of an "off premises extension"
using the Internet.  One possible application, given sufficently well
connected sites, would be to allow people to take calls coming into a
call center from another off-premises location, using the technology I
have proposed to carry the audio while they use some other software
(either local software or another net application) to actually look up
information, enter orders, etc.  You'd probably need an ISDN line or
other high capacity "pipe" to the off-premises location to get audio
quality and transmission speed sufficient to make this work.

Please, no flames about whether this SHOULD be done, how much
"bandwidth" it will consume, etc.  Both regulations and the capacity
of Internet connections vary from place to place.  What is illegal or
a drain on bandwidth in one place may be quite legal, and consume only
a fraction of a percent of available bandwidth in another place.  And
as we all know, regulations prohibiting bypass of the phone company
are being lifted in many places (if they're not gone already) and
higher capacity "pipes" are being constructed all the time (just as a
side note, I mentioned the bandwidth issue regarding audio streams to
a friend who works at an ISP.  He said that these would hardly be
noticed on their network, but they have a relative large "pipe" to the
backbone.  YMMV.  especially with a smaller provider).

The main ideas I want to have on record as "prior art", in case
nobody's tried to patent them yet (I hope), are:

1) The idea of taking a unidirectional or bidirectional digital audio
stream from the Internet and converting it to analog and sending it to
or from a telephone line,

2) The idea of using client software at a user's site on the Internet
to remotely control another device on the net that can initiate a call
or answer a call (this is prior art anyway, as folks have used remote
modems on the internet for over a decade, but this may be the first
time this has been proposed in connection with a device that would
send real-time audio streams to and from the line).

3) The idea of using authentication with such a system, so that
whenever a command is sent that would take the phone line off hook,
the command string would include a password or other mechanism that
would be verified by the server to insure that the user actually has
authority to remotely control the line.

4) And just to cover all the bases, I'll also suggest that an
adapation of this idea would allow someone to call into the Internet
using a server, have the call transported some distance over the
Internet as digital audio streams, and then sent back out into the
public switched telephone system at a distant point.  I'm not
suggesting this would work well, would be legal, or should be done,
but I want to go on record as saying it would be possible with the
right hardware and software.

Note that although I make reference to the Internet at several points
above, this technology could work in a similar manner on a private or
corporate network.

One final comment: It would be nice if perhaps a later version of this
technology would offer conference call capability (for example, one or
more users on the Internet and one or more "off-net" users connected
via phone lines, all taking turns on a voice conference).

It will be interesting to see how long it will be before someone comes
up with this technology.  It's not a question of "if", it's a question
of "when", IMHO.  I'd like to see it offered sooner rather than later,
and at a low enough price that companies and individuals can afford
it!

Well, that's my idea, as sent to the TELECOM Digest on September 15,
1995.  If anyone's already come up with something like this, I'm not
aware of it, so please let me know.  On the other hand, if anyone
decides to proceed with building this technology as a result of this
article, I'd be happy to help beta test the result (from the user
side, of course!)  :-)



                                                                   


Jack Decker


[TELECOM Digest Editor's Note: I thought something like this was
already going on. I think I have read about it before on the net.
Am I mistaken?  Isn't this already being done in a limited way?   PAT]

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



In article <telecom15.394.4@eecs.nwu.edu>, James E. Bellaire <bellaire@
tk.com> wrote:

> Sounds like a good list, but give them a different message, to set a
> 'national policy on telephone dialing' that includes OPTIONAL 1+NPA
> local dialing (billed as dialed local) and suggesting 911 be permitted
> along side 9-911 where the PBX can handle it.

> (All comments are based on the US telephone system.)

Turns out that some places 1 + NPA + 7D, where 7D is local does in
fact route correctly and get billed as a local number.  Makes for
dialing instructions on portable computers that travel across area
codes.

My example eas in Pacific Bell's area (408 to be specific) and I found
out about it quite by accident.  I set up my brother's computer (he
lives in 415, but we were in 408) and wanted to try it out (to dial a
408 number).  I just let it go, and it worked.  Astonished me!!

Now this is in a part of the country where 1 + NPA + 7D just started
this year, and the PUC hasn't forced us to make a difference between
1+ meaning toll (on ANY numbers).  Other posts have related that it
can get confusing in other parts of the country.

Again NANP dialing instructions ...


Tom Watson
tsw@3do.com         (Home: tsw@johana.com)

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



Greetings. I'm looking for a couple of boxes that does the following:


           A       B         C         D        E        (see below)
      |         |     |             |     |           |
      |         |     |             |     |           |
      |         |     |             |     |           |
      |         |     |             |     |           |

                 -----  28.8 Kbps    -----
       57.6 Kbps |  b|---------------|b  | 57.6 Kbps
   DTE ----------|a  |  28.8 Kbps    |  a|----------- DTE
                 |  b|---------------|b  |
                 -----               -----

     A = Serial line, 115.2 kbps
     B = Box that splits a single 'a' channel into two simultaneous
         'b' channels.
     C = Four plain-jane 28.8 kbps modems.  One on each end of two
         POTS lines.
     D = Box that merges two simultaneous 'b' channels back into a
         single 'a' channel.  (Same box used for B)
     E = Serial line, 115.2 kbps

  Connection is TWS

  The DTE would be see the appearance of a plain-jane modem.  Perhaps 
with
  special dialing commands to cause the component modems to place their
  respective calls.  A and E appear as traditional DCE.

  The beauty of this is high speed through-put using POTS.  I don't have 
to
  even settle for two modems.  Perhaps three or four for uncommpressed 
115.2
  thru-put, or more when compressed using special serial ports, e.g.  
230.4
  kbps.  Each box would reassemble arriving packets to the original 
sequence.

  Sort of a reverse mux.  Anyone ever seen such a thing?


Robert K. Ricketts   @   The Lottery is simply a tax on people bad 
in the Bayou City    @   at math.                                  
rkr@pel.com          

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



Azriel Heuman <azi@mofet.elex.co.il> wrote:

> Is there a European equivalent to Dialable Wideband Service?
> Is there a standard (ETSI or National) for such a service in
> Europe?

If what you mean by "Dialable Wideband Service" is the Multirate
service being rolled out in the US and defined in the 1993 version of
Q.931 then yes there is such a service called GloBand (or SwitchBand
in the UK).  It is based on a spec called Q.931W which is very similar
to the 1993 version of Multirate in Q.931 (although I can't say it is
the same).  For more info, contact Mercury in the UK or DIAX in
Denmark (+45 97 86 90 22).  I am not sure about an ETSI effort for
Multirate.


Hascall H. ("Chip") Sharp  Teleos Communications, Inc.
Sr. Systems Engineer    2 Meridian Road
      Eatontown, NJ  07724  USA
voice:  +1 908 544 6424    fax:    +1 908 544 9890
email:  hhs@teleoscom.com  web: http://www.teleoscom.com/

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



I am currently writing my Masters thesis on Interference Cancellation
for a DS-CDMA system and therefore need some information to simulate a
real-world realistic system.

Is there anybody who could tell me if Qualcomm's proposed standard
(IS95) are available anywhere on the net or somewhere else where it
could be ordered and delivered fast. None of the libraries around here
(In Denmark) seems to be able to get it and the ftp cite at Qualcomm
doesn't include the main chapters with specific details.

Any help or hints on where to find it would be appreciated.


Thank you,

Hans Peter Ostergaard

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



Robert Friedman (inwood@pipeline.com) wrote:

> James Gleick, founder of The Pipeline, said he had bounced 1 of 10,000
> subscribers, and that for repeatedly posting commercial messages.  He
> also believes that using your real name, and not hiding behind screen
> names, tends to discourage offensive or illegal behavior.

Which is why I so badly would like to see strong authentication become
an integral part of both online services and the Internet.

(If the press announcements from Netscape and VeriSign are any 
indication,
this just may happen ...)


Art Walker, Somewhere In Iowa           | Art.Walker@mnscorp.com
alt.sex/alt.binaries.pictures.erotica/alt.sex.bestiality, etc.
At best, the regulars of these groups are failed phone sex customers...
                                            - SPY, Jul/Aug 94, Page 85

[TELECOM Digest Editor's Note: Your point is a good one. If I may for
a moment go back to the early 1980's when BBS'ing was first becoming
available, some of us argued back then that user authentication was
an absolute must. We were shot down time and again. The earliest BBS
lines were here in Chicago as most of you know. Ward Christianson and
Randy Suess started the whole concept in 1979 right here. The early
BBS lines were frequented by computer hobbyists many of whom were
'into' ham radio and CB. As a result, the users were like ham radio
people; i.e. polite, courteous, willing to help others learn about
their equipment. The first BBS lines were in fact largely intended as
gathering places for communicatations between people who used the same
kind of systems. We had 'Apple Bulletin Boards', 'Radio Shack Bulletin
Boards', etc.

Some of us started general purpose BBS's on certain themes or ideas
rather than on computer-types. Many folks viewed the early vandalism
of the boards as just aberations, things that would not happen very
often. We should have caught the drift from what happened when CB
radio became popularized (it was pretty well useless by the early
1980's) but we did not. By 1985 or so we were seeing more and more
BBS's change to 'read only access until authenticated' as a result
of the increasing vandalism and harrassment so many suffered. But when
I suggested in 1981 the BBS operated by the Chicago Public Library 
(where I was nominally the sysop) should have some method of verifying
who was who I was told that if people had to identify themselves in
order to have an account 'they will be frightened to post anything and
turned off; their freedom of speech and expression will be chilled ...'

And that was not only the attitude the librarian took with me, it was
a very common attitude among many BBS sysops. But those systems which
did convert to user authentification required before posting -- none
of them had it in the beginning -- found the nonsense, forgeries and
downright fraud come to almost a complete halt.  Nothing, it seems,
works as well at preventing misuse of a computer messaging system or
chat system as the user knowing that *you as sysadmin* know who he is.
The fact that the sysadmin or sysop had the ability to wake up in the
morning, find a bunch of garbage on his machine and call the person
on the phone who put it there essentially meant it did not happen
any more. That I could call you up and say, "uh Art, you were on the
board last night about midnight and you left this profane message
full of cussing and racial comments, etc. I was wondering why in the
world you would have posted such a thing?" ... the fact that the sysop
of the 'closed system' could do that meant that it was very seldom if
ever that he *had* to do it. 

Of course there was a trade off. The sysadmin had a duty to validate 
his users (that is not a sexist pronoun, there were no female sysops
in those days and female users were almost as rare) as promptly as
possible, and to be trustworthy about the names, addresses and phone
numbers collected. New users would often complain, "well I don't know
who this person (the sysop) is; I am not going to give out my name,
phone number and address to a stranger", and my answer always was, but
you expect me to be willing to allow a total stranger to use my
computer and visit electronically with me in my living room ...

I'd like to see user validation and authentication tighten up just a
bit also, especially on the commercial online systems where anyone with
the money can walk in and do their thing. At least at universities and
companies I would presume they have some verification of who works for
them or goes to school there. I'd like to see Caller-ID become a routine
thing on all incoming modem lines and no postings allowed (at least not
if they were going off the host machine) until the admin or some 
employee
specifically trained in validation/authentication proceedures was able
to send the password out by US Mail to the address of record *and* have
a one-minute or less phone conversation with the new user at the phone
number of record. Read all you want, no one cares who you are. If you
wish to post, you must be authenticated. Note I did not say *approved*,
merely authenticated. Do something to show you are real. Watch and
see how fast things would clean up; I promise.  And for those privacy
freaks who would complain about their freedom of speech being chilled
and how abused they will become when their phone and address are on
file with the admin, I would respond "thank you for your gratuitous
insults regarding my integrity. Find some other sucker willing to
provide you with a free public toilet."   End of sermon.    PAT] 

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



Hi,

Someone gave me this number:

 +1 600 204 9507

The guy claims it's charged (he's calling from The Netherlands) at a
far higher tarif than "normal" charges from The Netherlands -> U.S.A.

What's happening? I thought the 600 NPA was still listed as "reserved
for future use".

Did I miss something?


Thanks,

Jan Joris


[TELECOM Digest Editor's Note: I think that on this side of the pond,
600 is used for Canadian telex and TWX stuff. That was in 610 and it
got moved out. However I have heard that from elsewhere in the world
1-600 is a bogus code that gets you an international sex phone service.
How they reconcile that with legitimate telex users in other countries
who want to call a TWX machine in Canada, I do not know. I suppose you
could say there are two 'six hundreds'; one that only other machines
on the telex/TWX network can reach and one that only people in the
Netherlands (or elsewhere in Europe?) can reach. As for us here in
the USA, I don't think we can dial into 600 at all from a voice line.

In other news: this Sunday, September 24 marks the 53rd anniversary
of my hatching. I was born quite early in life you know. Where the
years have gone, I cannot begin to imagine. And the more I learn, the
dumber I realize I am. Was it Mark Twain who once said that as a child
he was always quite embarassed by how dumb his parents were. He said
that as the years went by he was really amazed how much his parents
had learned, and how smart they had become. Ditto here.   PAT]

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

End of TELECOM Digest V15 #400
******************************

                  
