TELECOM Digest     Thu, 17 Feb 94 01:45:00 CST    Volume 14 : Issue 87

Inside This Issue:                          Editor: Patrick A. Townson

    CFP: Smart Card Research Advanced Application Conference (J. Vandewalle)
    VCR and Touch-Tones (Markus Schlegel)
    Directory Assistance in Switzerland (Eric De Mund)
    Is There a Sprint 1-800 Number? (David Langlands)
    Need Information About Telemate (Al Cohan)
    Simple Phone Set Sources Wanted (Dave Agans)
    DSU Comparison Matrix (Ellis Claggett)
    Re: Need Info on ISDN Phones (Al Varney)
    Re: Tropez 900Mhz Cordless Phones (Bill Bradford)
    Re: VTech 9 "Tropez" and Sony SPP-ER1 900 MHz Phones (Mike Yang)
    Re: VTech 9 "Tropez" and Sony SPP-ER1 900 MHz Phones (Steve Bryan)
    Re: Digital Cellular Phones (Michael D. Sullivan)
    Re: Digital Cellular Phones (Alex Cena)
    Re: Digital Cellular Phones (John Galloway)

TELECOM Digest is an electronic journal devoted mostly but not
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----------------------------------------------------------------------

From: jeanjac@iad.ift.ulaval.ca (Jean-Jacques Vandewalle)
Subject: CFP: Smart Card Research - Advanced Application Conference
Reply-To: jeanjac@iad.ift.ulaval.ca
Organization: Universite Laval, Dept. Informatique
Date: Wed, 16 Feb 1994 22:43:53 GMT


CALL FOR PAPERS : CARDIS

FIRST SMART CARD RESEARCH AND ADVANCED APPLICATION CONFERENCE

October 24 - 26, 1994  LILLE FRANCE

Sponsored by IFIP - The International Federation for Information Processing

AIMS AND GOALS

Smart cards or IC cards are becoming a significant part of the
information processing world. Furthermore they are beginning to move
towards real integration into the information systems. They
participate in the overall data management, security and communication
processes. But they bring their own special characteristics. It is
very likely that future IC cards will require many scientific and
technical improvements which represent a challenge for the success of
the technology. So far there are many events which are mostly devoted
to the commercial and application aspects of IC cards. There is now an
opportunity to initiate a scientific conference bringing specialists
who are involved in all aspects of design of the future IC cards and
related devices and environment. IFIP - the International Federation
for Information Processing has agreed to sponsor this conference. It
will be the first occasion for the IC card community to start a
permanent activity: In addition to the conference itself there will be
discussions about creating a permanent group within IFIP with possible
implication for advancing standards, publishing and international
cooperation.

SUBMISSIONS

Six copies of detailed abstracts of original papers corresponding to
one or several themes for the conference should be sent in English to
the program chairman before May 2, 1994. The submissions will start
with a succinct statement of the problem addressed and their
significance, appropriate for a non-specialist.  Technical development
directed to the specialist should follow as needed (at most ten
pages).

They should be accompanied by a fact sheet indicating the following:

  - Title of the paper with the relevant conference theme(s);
  - Author(s) with affiliation, address, phone and fax numbers, E-mail.

Proceedings will be available at the conference.

IMPORTANT DATES

Submission deadline           May 2, 1994
Acceptance notification       June 17, 1994
Camera ready paper due        August 13, 1994
Conference                    October 24 - 26, 1994

THEMES

TECHNOLOGY
           IC architecture and techniques
           Memories and processor design
           Read/Write unit engineering
           Specific co-processors for cryptography
           Biometry
           Communication technologies
           Interfaces with the owner, the service suppliers
           Reliability and fault tolerance
           Special devices
           Standards
SOFTWARE
           The operating system
           Models of data management
           Communication protocols
IC CARD DESIGN
           IC cards formal specification and validation
           Tools for internal or external software production
           Validation and verification
           Methodology for application design
SECURITY
           Models and schemes of security
           Algorithms
           Security interfaces
           Hardware and software implementation
           Security of information systems including cards
           Formal verification of transaction sets
IC CARDS, INDIVIDUALS AND THE SOCIETY
           IC cards and privacy
           Access to his data by the owner
           IC cards: political and economical aspects
           Is the IC card going to change regulation?
           Patents, copyrights
FUTURE OF THE IC CARDS
           Innovative technologies
           Moving towards the pocket intelligence
           Convergence with portable PCs, laptops etc ...
           PCMCIA
INNOVATIVE APPLICATIONS
           Design methodology of applications
           IC cards and the information system
           Examples of new applications
           Requirements for innovative cards


ORGANIZATION

General Chairman                 Program Chairman
Prof. Vincent Cordonnier         Prof. Jean-Jacques Quisquater
RD2P                             Universit'e Catholique de Louvain
CHRU CALMETTE                    Dept. of Electrical Eng. (DICE)
Rue du Prof. J. Leclerc          Place du Levant, 3
F - 59037 LILLE  CEDEX           B - 1348 Louvain-la-Neuve
FRANCE                           BELGIUM
Tel (33) 20 44 60 47             Tel (32) 10 47 25 41
Fax (33) 20 44 60 45             Fax (32) 10 47 86 67
e-mail: cardis@rd2p.lifl.fr  Quisquater@dice.ucl.ac.be

Program committee
 Mart'in Abadi (Dec Research, USA)
 Ross Anderson (Cambridge, UK)
 Benjamin Arazi (Ben-Gurion, Israel)
 Todd Arnold (IBM, USA)
 Jacques Berleur (FNDP, Belgium)
 William Caelli (Queensland, Australia)
 David Chaum (DigiCash, Netherlands)
 Vincent Cordonnier (Lille, France)
 Mark Cummings (SRI, USA)
 Amos Fiat (Tel-Aviv, Israel)
 Andr'e Gamache (Quebec, Canada)
 Marc Girault (SEPT, France)
 Louis Guillou (CCETT, France)
 Joseph Hoppe (TRT Philips, France)
 John Kennedy (Cylink, USA)
 Philippe Maes (Gemplus, France)
 Roger Needham (Cambridge, UK)
 Jean-Jacques Quisquater  (Louvain-la-Neuve, Belgium)
 Laurent Sourgen (SGS-Thomson, France)
 Doug Tygar (Carnegie-Mellon, USA)
 Michel Ugon (Bull-CP8, France)
 Klaus Vedder (GAO, Germany)
 Robert Warnar (NIST, USA)

The city of LILLE is about 150 miles away from PARIS. It can be
reached: from Paris by either motorway (two hours) or train (one
hour). From most European countries by train, motorway or plane. The
conference will take place at the University of Sciences and
Technology of Lille. Accommodation can be provided either on the
campus or in the center of the Lille. We will provide maps and help
for hotel reservation and travels.

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

From: UPS500@IBM.rhrz.uni-bonn.de (Markus Schlegel)
Subject: VCR and Touch-Tones
Date: 16 Feb 1994 15:17:34 -0600
Organization: UTexas Mail-to-News Gateway


I have the following problem: I would like to remote-control video
equipment that is controllable by infra-red otherwise by means of
touch-tone.

The aim is to be able to remotely set a channel on a satellite
receiver and start the VCR for recording. Timer control obviously
isn't the solution, as I am looking to record "wild feeds" on short
notice.


Best thanks,

Markus Schlegel   At Universitaet Bonn, Germany

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

Date: Wed, 16 Feb 1994 13:42:48 -0800
From: Eric De Mund <ead@netcom.com>
Subject: Directory Assistance in Switzerland
Reply-To: Eric De Mund <ead@netcom.com>
Organization: Netcom Online Communication Services


People,

My Swiss roommate discovered, in soc.culture.swiss, that the Swiss
phone book is available electronically. Issue `telnet etv.switch.ch'
with a username of `ETV' to access it. German, French, Italian, and
English interfaces are available.


Eric De Mund <ead@netcom.com>

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

From: dlanglan@urbana.mcd.mot.com (David Langlands Tech Pubs Intern)
Subject: Is There a Sprint 1-800 Number?
Date: 16 Feb 1994 23:58:25 GMT
Organization: Motorola Computer Group, Urbana Design Center


Hi everyone,

Does Sprint have an alternative to the 103330 sequence like AT&T has
with the 102880?  I'm looking to place a direct-dial credit card call
from a PBX which will not let me call 103330.

Thanks for any information,


Regards,

David S. Langlands                         dlanglan@urbana.mcd.mot.com 
Motorola, MCG, Urbana Design Center      Technical Publications Intern
1101 University Avenue, Urbana, IL 61801    University of Illinois '94


[TELECOM Digest Editor's Note: At least where Sprint FONCARDs are
concerned, you can use 1-800-877-8000. Listen for the computer tone
then dial 0 + area + number. Listen for the tone again, and enter your
fourteen digit (typically phone number plus four digit pin) FONCARD
number. To make multiple calls, do not hang up. Press the # key for
one full second, then when you hear the tone start over with 0 + area
+ number for the next call, etc. No card number needed for second and
subsequent calls. For international calls, substitute 01 for 0, then
dial the country/city code and number. I do not know if this will work
for other credit cards as well, but you can contact Sprint customer
service to inquire at 1-800-877-4646.   PAT]

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

Date: Wed, 16 Feb 94 13:51 EST
From: The Network Group <0004526627@mcimail.com>
Subject: Need Information About Telemate


I have a client that is using a PC to capture SMDR data and somehow
import it to a program called Telemate. I need to get any information
on who manufactures Telemate. I have been unsuccessful in my attemps
to find this company.

Any help you can provide is appreciated.  Thanks in advance.


Al Cohan   The Network Group

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

From: dagans@zydacron.com (Dave Agans)
Subject: Simple Phone Set Sources Wanted
Date: Wed, 16 Feb 1994 11:26:13
Organization: Zydacron, Inc


Hi,

I'm looking to resell a desktop computer-based phone system.  The
minimum requirement for the phoneset is a handset for private
conversations, a microphone and speaker for "speakerphone" conversa-
tions, a hookswitch for pickup and hangup, and a speakerphone mode
button.  Dial keypad is optional.  It would be very nice if the
interface to this was microphone and speaker, with a couple of switch
contacts, rather than the standard POTS current source powered line
interface.  It's also a requirement that the "speakerphone" mode NOT
have echo suppression -- I do full duplex echo cancellation in the PC.

Anybody know of such a device, or a source I can ask?  You can email
me at dagans@zydacron.com.


Thanks,

Dave Agans

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

From: Ellis Claggett <CLAGGETTE@BSP03C.PRIMERICA.COM>
Subject: DSU Comparison Matrix
Date: Wed, 16 Feb 94 11:20:00 PST


Is there any one out there who has done or has access to a comparison
matrix of DSU's?  My company is looking at standardizing on a single
vendor or as few as possible and I would like to get a copy of an
existing matrix to make my job a little easier.  If anyone can help,
my contact information is listed below.


Ellis. R. Claggett   Voice 410/332-3679
Fax 410/332-3221   claggette@bsp03c.primerica.com

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

Date: Thu, 17 Feb 94 00:22:43 CST
From: varney@ihlpe.att.com
Subject: Re: Need Information on ISDN Phones
Organization: AT&T


In article <telecom14.81.13@eecs.nwu.edu> btaylor@csuchico.edu (Beverly 
Taylor) writes:

> In article <telecom14.71.6@eecs.nwu.edu>, The Network Group <0004526627@
> mcimail.com> wrote:

>> I need to know a source for ISDN phonesxxx -- excuse me: voice
>> terminals.

>> I have heard that AT&T has a few of these but haven't heard of any
>> other manufacturers such as Northern Telecom or others. Apparently the
>> Northern product for Meridian Digital Centrex is not an ISDN phone.

> We have used TelRad, Fujitsu, and AT&T ISDN sets.  They're all used to
> run on an AT&T 5ESS.  We're very satisfied with all of them and have
> only found these three will work with our CO switch.

   The Compatibility Table for the 5ESS(tm) switch "Custom" ISDN
interface lists NEC and a vendor called "GPT" as additional vendors of
ISDN VOICE terminals.  Most offer various configurations with/with-out
data or packet capabilities.  There are an additional dozen or so
vendors of ISDN "boards" and interfaces supporting data-only
capabilities.

   I believe Bellcore lists vendors that support the National-1 ISDN
interface.  These should all work with the 5ESS switch (on 5E8 and
later).


Al Varney

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

Date: Wed, 16 Feb 1994 11:29:17 CST
From: Bill Bradford <STUBRADFOWC@MERCUR.USAO.EDU>
Subject: Re: Tropez 900Mhz Cordless PHones


We've got one of the Tropez phones here in the Computer Science
department at the University of Science and Arts of Oklahoma, where I
am a workstudy.
 
It works great.  The previous manager of the DP department bought it
because of it's "impervious-ness" to interference, and we've never had
any static on it, even two rooms away in a lab full of twenty 486 boxes.
 
My favorite feature is the ability to pick up the phone and NOT have
to hit the "answer" or "phone on" button, like most other cordless
units.

 
Bill Bradford * stubradfowc@mercur.usao.edu 

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

From: mikey@sgi.com (Mike Yang)
Subject: Re: VTech 9 "Tropez" and Sony SPP-ER1 900 MHz Phones
Organization: Silicon Graphics, Inc.
Date: Wed, 16 Feb 1994 18:00:50 GMT


In article <telecom14.77.2@eecs.nwu.edu> rob@xyzoom.info.com (Rob
Lingelbach) writes:

> When I went back to the store the salesman talked me into the new Sony
> SPP-ER1 900 Mhz model, which was 299$ (compared to 187$ for the
> VTech).  I brought it home, and the sound quality is even worse than
> the VTech!

Funny, I didn't notice any quality difference between my ER1 and my
old SPP-180.  The dial-tone sounds terrible on the ER1 (I don't know
why), but the voice quality is great (maybe my ears are just not very
discerning).  I was pleased to get a phone with a little better range
than my three-year old SPP-180 that was showing signs of age.

I settled for danalog 900Mhz because the digital one I tried
(Cobra/Escort) had a noticably poorer sound quality and I read about
the VTech and AT&T 9100 limitations.

Interestingly, I tried the new Sony 49Mhz models and fonud that
their line quality was noticably worse than their older models,
interference-wise.

I like the extremely-long stand-by time of the ER1 when the ringer is
(I can hear the other phones in my house ring, thank you, and enjoy
the challenge of trying to remeber where I left the cordless last).  I
only have to charge it overnight once every three or four weeks.  The
Cobra, with no ringer-off switch, required charging every two days.
What pain.


Mike Yang        Silicon Graphics, Inc.
mikey@sgi.com           415/390-1786

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

From: Steve Bryan <sbryan@maroon.tc.umn.edu>
Subject: Re: VTech 9 "Tropez" and Sony SPP-ER1 900 MHz Phones
Organization: Sexton Software
Date: Thu, 17 Feb 1994 00:57:08 GMT


In article <telecom14.77.2@eecs.nwu.edu> Rob Lingelbach, rob@xyzoom.
info.com writes:

> Last night I brought home a VTech "Tropez" 900 Mhz cordless phone, and
> I was very disappointed with the sound quality.  A constant hiss and
> limited frequency response made my older Sony 49 Mhz cordless sound
> great (which it really isn't, compared to other 49 Mhz phones).

I bought the base model 900 MHz phone from VTech. My first impression
was similar to yours, ie there was what sounded like an annoying hiss
when listening to the dial tone. For use in actual calls I have found
the sound quality to be quite good and the range is excellent. I can
leave my office on the sixth floor of my office building and eat at
the restaurant on the ground floor and still get phone calls. In
particular the sound quality is definitely better than the Motorola
cordless phone that I have at home. With it a caller can clearly tell
a cordless phone is in use.  That is not what I've heard from callers
when I've used the VTech phone at my office (ie it seems to be as good
as a regular phone).


Steve Bryan

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

From: mds@access.digex.net (Michael D. Sullivan)
Subject: Re: Digital Cellular Phones
Date: 17 Feb 1994 03:04:25 GMT
Organization: Express Access Online Communications, Greenbelt, MD USA


jweinber@ccgate.tfincc.DLJ.COM writes:

> I was talking to someone the other day, and he told me that the latest
> and greatest in cellular phones was digital.  Apparently, you get one
> of the newer generation phones and you are connected over a digital
> link rather than an analog one.  How does this work?  He said
> something about not getting "bumped off".  I was kinda in a rush, so I
> did not get the full story from him.  Also, does the service provider
> need to have digital capabilities, or do they all have them by
> default.  Any information on this would be appreciated.  

The carrier has to have digital capability.  There are two types of
digital cellular -- TDMA and CDMA.  TDMA is first to market; CDMA is
coming soon.  Using a TDMA digital phone in a CDMA system will default
to analog (all phones on the market and likely to come on the market
are dual-mode, digital and analog).

The cellular carrier sets aside a subset of channels (in TDMA) for
digital transmissions.  Phones with TDMA capability are autodetected
when call setup takes place, and a digital voice channel is assigned
if available, with analog used if none are available.  Analog phones
use only the analog channels, so the digital user has a greater
probability of having calls go through during busy hour. 


Michael D. Sullivan  mds@access.digex.net     avogadro@well.sf.ca.us
Washington, D.C.     74160.1134@compuserve.com  mikesullivan@bix.com

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

Date: Thu, 17 Feb 94 02:53:02 GMT
From: Alex Cena <acena@lehman.com>
Subject: Re: Digital Cellular Phones


jskene@delphi.com wrote:

> Digital cellular phones digitize your voice in the phone itself, then
> compress the signal by a factor of 3-20 before transmiting to the base
> station.  This allows a given radio bandwidth to carry more channels,
> resulting in less congestion. Other benefits include better voice
> quality (see below), future high-speed data capability, more secure
> conversation, and more immunity from toll fraud.  One characteristic
> of digital cellular, however, is the small added delay in the coding
> process, which causes echo to be heard by the cellular subscriber.
> This echo can be eliminated through the use of a high-quality echo
> canceller. 

Is delay a characteristic of both digital cellular standards in the
US?

> Echo cancellers are now being developed specifically for
> digital cellular, and can feature background noise cancellation also,
> providing even better call quality compared to analog systems.  Some
> service providers will offer you a dual-mode phone, which can operate
> either in analog or digital modes, allowing you to use the older as
> well as newer networks.  

In fact, the TDMA phones offered McCaw and Southwestern Bell in are
dual-mode that will operate in the Digital/TDMA mode in areas w/that
service or Analog/AMPs if TDMA is not available in the service area.

BTW, I would be interested in hearing comments from users (actual
service or participants in trials) of digital cellular regarding their
experiences with it, especially service quality relative to current
analog.

> Future cellular networks are expected to be all-digital, due to the
> bandwidth efficiency, network control, call quality and fraud
> resistance they offer.

It is difficult for me to imagine an all digital cellular network
since I still have not made the switch to CD players and I am quite
satisfied with my 15 year old cassette player.  Analog still has quite
a bit of life in it since carriers and manufacturers have done an
excellent job extending its useful life and capacity. i.e. dynamic
frequency allocation, mini-cell sites, NAMPs, etc.  Moreover, carriers
that migrate to CDMA (i.e. US West New Vector, Bell Atlantic Cellular,
Pactel Cellular and Alltell) essentially can double their capacity by
allocating 10% of their bandwidth to digital.  Thus, those carriers
will have sufficient capacity to meet its anticipated growth needs,
technology to offer enhanced services such as integrated paging, short
message service, data, PCS like services, etc as well as segment
prices based on quality of service, by migrating their spectrum in 10%
increments over time.

While we are on the subject of wireless technology, can someone
provide me the details or the specs on WACS?


Alex M. Cena, Lehman Brothers, acena@lehman.com

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

From: jrg@rahul.net (John Galloway)
Subject: Re: Digital Cellular Phones
Organization: a2i network
Date: Thu, 17 Feb 1994 01:21:55 GMT


In article <telecom14.84.13@eecs.nwu.edu>,  <jskene@delphi.com> wrote:

> Digital cellular phones digitize your voice in the phone itself, then
> compress the signal by a factor of 3-20 before transmiting to the base
> station.  [deleted]

> Future cellular networks are expected to be all-digital, due to the
> bandwidth efficiency, network control, call quality and fraud
> resistance they offer.

How are digital systems more fraud resistant?  I assume you are
talking about the folks that listen in on the cellular frequencies and
pull your phone ID out (by using one of the decoder boxes specifically
designed to do this) and use it to program another phone that they
sell to someone.  Since the decompressor circuit most be in the phone
it will be widely available and known so the jerks building the
decoder boxes should have no problem incorporating that into their
systems.  right?


internet    jrg@galloway.sj.ca.us  John R. Galloway, Jr  795 Beaver Creek Way
applelink   D3413                  CEO...receptionist    San Jose, CA   95133
                                   Galloway Research     (408) 259-2490

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

End of TELECOM Digest V14 #87
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