TELECOM Digest Wed, 27 Apr 94 12:03:00 CDT Volume 14 : Issue 184 Inside This Issue: Editor: Patrick A. Townson Using Call Forwarding to Avoid Tolls (Tom Holderby) Reach Out and Touch Someone ... (Worth Magazine via Van Hefner) AT&T Craft Access Terminal (Chris Klugewicz) Re: GTE/SF Supervising on Busy Calls? (Mike Borsetti) Looking For International Switching Symposium Proceedings (Jeong-Gyun Shin) Where is NPA/NXX Current List? (Kim Kempf) Incident Management Call Boxes (Paul Robinson) Source of 25 Pair AMP Connectors to RJ11 Patchboard Needed (Joe McGuckin) Qualcomm and ATM (John Anderson) NT Script Files (Jeff Whitcomb) What is True Voice? (Kendall Willis) Wanted: Chip CS61574A or CS61575 (Sorokin Anatole) CFP: NCC'95 (IIT Kanapur, India) (Chandrabose Aravindan) CFP: First Smart Card Research/Advanced Application Conference (Vandewalle) TELECOM Digest is an electronic journal devoted mostly but not exclusively to telecommunications topics. It is circulated anywhere there is email, in addition to various telecom forums on a variety of public service systems and networks including Compuserve and GEnie. It is also gatewayed to Usenet where it appears as the moderated newsgroup 'comp.dcom.telecom'. Subscriptions are available at no charge to qualified organizations and individual readers. Write and tell us how you qualify: * telecom-request@eecs.nwu.edu * The Digest is edited, published and compilation-copyrighted by Patrick Townson of Skokie, Illinois USA. You can reach us by postal mail, fax or phone at: 9457-D Niles Center Road Skokie, IL USA 60076 Phone: 708-329-0571 Fax: 708-329-0572 ** Article submission address only: telecom@eecs.nwu.edu ** Our archives are located at lcs.mit.edu and are available by using anonymous ftp. The archives can also be accessed using our email information service. 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Any organizations listed are for identification purposes only and messages should not be considered any official expression by the organization. ---------------------------------------------------------------------- From: holderby@inca.gate.net (Tom Holderby) Subject: Using Call Forwarding to Avoid Tolls Date: 27 Apr 1994 10:50:34 -0400 I've recently become aware of the fact the many BBS's and Internet service providers use the call-forwarding trick where they go buy a phone number (without a phone) in outlying exchanges which are permanently call-forwarded to their main lines, thereby increasing their local call area. Apparently some of them carry this to the point of multiple forwarding, which may get them 50 or 75 miles without a toll. I was just wondering how the phone companies feel about this. Is this something that you can just tell them you want to do, being very open about it? Or do you need to sneak around, get the numbers in different names, etc? Also, assuming that this is legal and acceptable, can you forward multiple calls off of one line, or do you need one line per call? Thanks in advance for any help. Tom Holderby holderby@gate.net [TELECOM Digest Editor's Note: Generally, using the *regular, residential variety* of call forwarding will NOT save money where toll charges are concerned unless you are able to link two or three large toll free calling areas together. Generally, two or more short calls linked together cost more than a single long-haul call covering the same points. There is a service offered by many telcos called 'remote call forwarding' which con- sists of a phantom number in a central office with no actual wire pair going somewhere attached to it. This phantom number is programmed perman- ently by telco to automatically 'call forward' to some other location outside the CO. The subscriber pays for those calls at the direct dial rate in effect at whatever time a call is received. Remote call forwarding usually requires a 'path' for each call to be forwarded at the same time. You want to be able to receive three calls at once, you need three paths, etc. This often times is not intended so much to save money for the caller as it is intended by the called party to provide a local presence in the community where the caller is located. Remote call forwarding is legal and a published tariff. On the other hand, the casual stringing together of phones in a call forwarding link purely for the purpose of toll-avoidance is not legal; but more important, it rarely can be justified economically with the exception mentioned above of phones in large toll free areas which have been *very* strategically placed at certain locations. As long as they buy the line 'without the phone' from telco according to remote call forwarding tariffs (they are NOT priced the same as regular call forwarding tariffs) then it is legal. Subscribers who elect to use this really need to sit down with pencil and paper and work out the costs before proceeding to see if it makes any real difference or not to them and their subscribers before proceeding. It might if they are large like Compuserve. PAT] ------------------------------ From: vantek@aol.com Date: Mon, 25 Apr 94 09:24:04 EDT Subject: Reach Out and Touch Someone ... The following is a reprint from the May 1994 issue of {Worth Magazine}. Shady Operators A new measure would mean phone callers don't have to put everything on the line. How would you feel if your telephone company were to sell your name and address to a travel agency because you make lots of international calls? What if it gave your name to an X-rated video marketer as part of a list of phone-sex addicts? Though they haven't been hashed out in court, such actions are likely legal right now. Phone companies aren't barred from hawking lists of names, organized by calling habits, to all comers. Meanwhile, police departments and other authorities need a subpoena to see such records. Most phone companies insist they'd never divulge your habits to a marketer -- although they may use them for their own marketing purposes. But many other companies sell phone-call records: Mail-order companies, for instance, often use caller-identification technology that tells them who's calling, then sell that data to other merchants. And some numbers exist just to gather mailing lists. "A great deal of information about us is collected, analyzed, and sold when we are conducting everyday activities," says Congressman Edward J. Markey of Massachusetts, who's pushing a measure to limit info harvesting. Markey's proposal, included as an amendment to a broader telecommunications bill, seems like a no-brainer: It would mainly require phone companies to get a consumer's express consent before disclosing any calling patterns or other data. The bill also would set nationwide privacy standards for caller-identification technology and require new privacy rules for all telecommunications media. But powerful local phone companies oppose the measure, which will likely be debated in the late spring. "The telephone business has been around for more than 100 years, and sacrosanct privacy has always been its hallmark," says a spokesman for BellSouth. "It seems strange that anyone thinks legislation like this is necessary." -- by David A. Andelman ============================================ Van Hefner Vantek Communications vantek@aol.com ------------------------------ From: c.klugewicz@chesbay.com (Chris Klugewicz) Subject: AT&T Craft Access Terminal Date: Wed, 27 Apr 1994 02:52:35 -0500 Organization: Chesapeake Bay Information Systems I recently purchased a surplus AT&T Craft Access Terminal for use as a telephone test set -- a function it fulfills quite adequately. However, I would like to be able to use the "Craft Access Terminal" part as well -- it'd be a nifty handheld data terminal, for instance. Using the CAT, I dialed into one of the modems around here and discovered that the set features a 1200 baud modem, which connected quite readily with my own AT&T DataPort. However, I could do nothing more. The CAT sends out a steady stream of ESC-LF-LF-LF-LF-ACK-NUL-NUL (pause) as if it's expecting a reply from the other end. Anybody familiar with AT&T's Craft computers or CAT test sets? I'd appreciate follow-up here or by email. Thanks! Chris Klugewicz Chesapeake Bay Information Systems c.klugewicz@chesbay.com ------------------------------ Date: Wed, 27 Apr 1994 00:40:02 PDT From: Mike Borsetti, Cellular One/San Francisco Subject: Re: GTE/SF Supervising on Busy Calls? In TELECOM Digest V14 #182 dreuben@netcom.com writes: > [...] I recently oticed that GTE/SF (00040) is *supervising* if a dialed > cellular customer is busy. > That is to say, if you call my GTE Mobilnet/San Francisco cell number, and > it is busy, the call will be BILLED, ie, you pay whatever local or toll > charges to hear a busy signal. That is correct; we've found the same problem with ring no answer situations. Of course, there is a second cellular carrier in the Bay Area , and it *does* handle call supervision correctly. Additionally, almost all of its roaming partners are on the NACN, and call waiting works in almost all of them. Mike.Borsetti@bactc.com Cellular One/San Francisco ------------------------------ From: Jeong-Gyun Shin Subject: Looking For International Switching Symposium Proceedings Date: 27 Apr 1994 20:15:57 GMT Organization: University of Delaware I came across few references quoting proceedings of International Switching Symposium (ISS) for 1990. Since the library where I am does not have these proceedings, I requested inter-library loan in my location. But, the problem is that the inter-library loan office in my location is unable to locate these proceedings. I consulted so called I.S.T.P. (? I forgot exact acronym) which is a manual with cross-references of all (?) technical conferences held around the world, and I failed to find this so called International Switching Symposium. Now, it is more of my *curiosity* than need. Can somebody knowledgeble tell me where to find (library/institution) the proceedings of Interna- tional Switching Symposium? Does your library has proceedings of ISS? If so, what years? Please email to shin@udel.edu. Thanks for attention and time. ------------------------------ From: mcrware!kim@uunet.UU.NET (Kim Kempf) Subject: Where is NPA/NXX Current List? Organization: Microware Systems Corp., Des Moines, Iowa Date: Tue, 26 Apr 1994 18:41:37 GMT I seem to recall a periodic posting of NPA/NXX numbers on the net somewhere. Is it still available and if so, where? Thanks in advance. Kim Kempf MicroMall, Inc. kim@microware.com (515) 224-9655 ------------------------------ Date: Tue, 26 Apr 1994 16:37:35 EDT From: Paul Robinson Reply-To: Paul Robinson Subject: Incident Management Call Boxes Organization: Tansin A. Darcos & Company, Silver Spring, MD USA In another news group, a representative of North Carolina State University wanted some information about costs and usage for setting up a system of roadside call boxes for freeways, as they've been asked to do so by the State. Someone else pointed out that the Texas Department of Transportation created a callbox system on freeways in the Fort Worth/Dallas area; the system uses cellular to call 911. The writer from Texas pointed out that "the system does not allow calls to anywhere else." It was at this point that I mentioned the incident in Southern California where one call-box unit was either stolen or monitored to get its identification code, which was used to cause tens of thousands of dollars in fraudulent cellular calls. I am wondering if there isn't some sort of "dispatch/reply" system that would use several shared radio frequencies along with a "request" channel where someone would send in an identifier and then be told what frequency to tune to? Someone could have perhaps 10 channels and use them as needed, instead of paying airtime and usage of a cellular network, or some other ideas. Responses may be made to me personally (I'll forward them), to TELECOM Digest or to list . Thank you for any responses. Paul Robinson - Paul@TDR.COM ------------------------------ From: josephm@pumasillo.San-Jose.ate.slb.com (Joseph McGuckin) Subject: Source of 25 Pair AMP Connector to RJ11 Patchboard Needed Date: 27 Apr 94 14:25:50 Organization: Schlumberger Technologies, ATE Division I'm looking for a rack mountable patchboard that accepts a 25 pair AMP connector and fans it out to 25 RJ11's. Thanks, Joe josephm@San-Jose.ate.slb.com ------------------------------ Date: Tue, 26 Apr 94 16:53:59 CDT From: andrsonj@ranger.rtsg.mot.com (John Anderson) Subject: Qualcomm and ATM I heard that Qualcomm is doing something with ATM. I'm just getting interested in ATM (better late than never :-) Does anyone have some information? Thanks, John ------------------------------ From: jeff.whitcomb@pcohio.com (Jeff Whitcomb) Subject: NT Script Files Date: 27 Apr 1994 00:08:20 -0400 Organization: PC-OHIO PCBOARD - Cleveland, OH - 216-381-3320 For the past few years, I have been writing script files in xtalk for interfacing to Northern Telecom PBX's. We currently have Option 11's at our remote sites, and an Option 61 at our RHQ. I was wondering if there is any market out there for such a product, or if it is even possible to sell them without permission from Northern or Xtalk. I would imagine that it would at least have to include the old, "NT is a trademark of Northern Telecom ... blah,blah". So far, I have written scripts for menu-driven programming changes, (changing phone features, setting date and time, and some misc), an automatic NPA,NXX updater for NARS/BARS equipped switches, A DTI/T1 interface monitor, which alerts my pager of a t1 outage,(outages effect my actual bonus $) or high error rate, an automatic phone TRACer, and some other misc shtuff. I am currently writing one for doing automated remote backups of all of our Option 11 switches on a monthly basis which would save time and money for visits to the actual site for P.M.'s. I am also planning to add all of these routines into a single script file, that is upgradeable by adding specific modules. I was also writing one to alert my pager of the actual load that is seeing a problem, such as 911-60 for a T1 outage or 911-32 for a set outage. Well ... just curious and looking for input. I would hate to write all of these, and not let anyone else have the opportunity of using them. Jeffrey T. Whitcomb jeffwhitcomb#pcohio.com ah535@cleveland.freenet.edu ------------------------------ From: kowillis@umr.edu (Kendall Willis) Subject: What is True Voice? Date: Tue, 26 Apr 1994 19:19:03 GMT Organization: University of Missouri-Rolla, Missouri's Technological University I'm interested in some of the technical specifications of True Voice by AT&T. Is it another method of companding the signal to get better sounding voice? I got the feeling that it only works between subscribers that are both AT&T. The ads say it is part of the I-plan and I suspect it is a bit of a ploy to get family members to join AT&T like MCI's friends & family. Most importantly, does it mess with data transmission? I would suppose it changes the channel characteristics. Kendall Willis [TELECOM Digest Editor's Note: Several months ago a detailed technical analysis of TruVoice (that's the official spelling, I think) was presented here in the Digest, and it is available in the Telecom Archives for your review of interested. The archives is accessible using anonymous ftp at the archives site, lcs.mit.edu. PAT] ------------------------------ From: sab@lesko.msk.su (Sorokin Anatole) Subject: Wanged: Chip CS61574A or CS61575 Date: Tue, 26 Apr 94 20:21:13 +0400 Reply-To: sab@lesko.msk.su Wanted: Chip CS61574A or CS615785 and quartz CXT8192 in quantity of ten. Payment in US Dollars. E-Mail: SAB@lesko.msk.su Fax: 7 (095) 187-01-52 Lesko Ltd. ------------------------------ Date: Wed, 27 Apr 1994 14:02:37 GMT From: Chandrabose ARAVINDAN Subject: CFP: NCC'95 (IIT Kanapur, India) The five IITs and IISc (Bangalore) of India jointly announce NCC'95 sponsored by their Joint Telematics Group. The NCC conferences will be held annually. Their goal will be to foster greater interaction between communications professionals, academics and students in India through research papers, tutorials and workshops. ANNOUNCEMENT AND CALL FOR PAPERS National Conference on Communications (NCC'95) I.I.T., Kanpur, INDIA March 1995 Sponsored By: The Joint Telematics Group of the five IITs and IISc. Papers are solicited on research and development work in the general area of communications. Topics of interest include but are not limited to: Base band transmission and modulation theory including detection, estimation and equalization. Information and rate distortion theory. Channel coding, spread spectrum and line codes. Source coding, voice, video and data encoding, compression and encryption. Telecommunication and computer networks. ISDN and broadband integrated networks. Telecommunications switching: message, circuit and packet switching, photonic switching and fibre optic networks. Signal processing, optical signal processing Neural networks, artificial intelligence and expert systems in communications. Radio, microwave, millimetre wave and optical communications. Satellite communications. Mobile and personal communications. Telecommunication devices and circuits. Telematics including audio and video conferencing Network architectures, planning and management. National telecommunication policies, standards, regulation and planning. Future telecommunication technologies. The conference will be preceded by a few tutorials on topics of current technical interest. Suggestions for tutorials are also solicited. Schedule: Intention to submit due: July 1, 1994 Full Paper Due: Sept 1, 1994 Notification of acceptance: Nov 15, 1994 Final Manuscript Due: Jan 1, 1995 Address for Correspondence: Prof. Sanjay K. Bose Email Address: skb@iitk.ernet.in Dept. of Electrical Engineering, I.I.T.,Kanpur - 208 016, INDIA ------------------------------ From: jeanjac@iad.ift.ulaval.ca (Jean-Jacques Vandewalle) Subject: CFP: First Smart Card Research/Advanced Application Conference Reply-To: jeanjac@iad.ift.ulaval.ca Organization: Universite Laval, Quebec, Canada Date: Mon, 25 Apr 1994 13:22:42 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. ------------------------------ End of TELECOM Digest V14 #184 ****************************** -------------------------------------------------------------------------------