TELECOM Digest Wed, 25 Jan 95 09:22:00 CST Volume 15 : Issue 63 Inside This Issue: Editor: Patrick A. Townson 205/334 Area Code Split (Jerry Pruett) Radio Modems For the European License-Free Bands? (ko@komac.knoware.nl) Questions About ADSL and HDSL (Olivier Andrieu) Implementations of the German SISA Specs? (Finn Andresen) Marine Telecom Installation (Demosthenes Panagopoulos) Wireless Networks (Marie-Louise Kok) Difficulty With Atlantic Bell ISDN (Jeff Hersh) Value of Motorola Flip Phone (Microtac 950) (Brian Klaas) Technical Help Needed With Pending Litigation (John Marinelli) Re: Question on Call-Back Operators (Georg Oehl) Re: Telephony Card/Software Needed (Christian van der Ree) Re: Radio Station Transmission Lines (satyr@bpd.harris.com) TELECOM Digest is an electronic journal devoted mostly but not exclusively to telecommunications topics. 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Any organizations listed are for identification purposes only and messages should not be considered any official expression by the organization. ---------------------------------------------------------------------- Subject: 205/334 Area Code Split From: kd4cim@vulcan.com (Jerry Pruett - KD4CIM) Date: Tue, 24 Jan 95 19:41:33 -0600 Organization: Vulcan - Live Long and Prosper! On 1/15/95, the 205 area code (Alabama) was split into 205 and 334. 205 remains the area code for LATAs 476 (Birmingham) and 477 (Huntsville). LATAs 478 (Montgtomery) and 480 (Mobile) were moved to the new 334 area code. The following is a list of the NNXs that have moved to the 334 area code. This list does NOT come from any official source, but my sampling of it seems to agree with the ad posted by South Central Bell in the 1/16/95 Communications Week. There is a "grace" period for which both the 205 and 334 area codes will work, but I left the Comm Week at the office, so I don't have the exact date. I seem to recall the "grace" period ending in June or July though. For more precise information for programming PBXs and such, call SCB (they had an 800 number in the Comm Week ad). At the end of the "grace" period, I assume that SCB (or is it Bellcore) will start assigning new NNXs that may duplicate in the 205 and 334 NPAs. Again, this following information is NOT guaranteed as it is extracted from a personal database. My use of the database requires that I keep it as accurate as possible however. For exact details, you should consult the Comm Week Ad and/or call SCB. NPA-NNX CLLI NPA-NNX CLLI NPA-NNX CLLI NPA-NNX CLLI 334-206 MTGMALMT 334-210 ANDSALXA 334-213 MTGMALDA 334-215 MTGMALDA 334-216 DMPLALMA 334-222 ANDSALXA 334-223 MTGMALMT 334-223 MTGMALMT 334-225 CTHRALXA 334-227 FTDPALMA 334-240 MTGMALMT 334-241 MTGMALMT 334-242 MTGMALMT 334-243 BNKSALXA 334-244 MTGMALDA 334-246 JCSNALNM 334-248 RPTNALXA 334-255 DLVLALXA 334-256 FMTNALMT 334-256 FMTNALMT 334-257 NTSLALXA 334-258 GSPTALXA 334-260 MTGMALDA 334-261 MTGMALMT 334-262 MTGMALMT 334-263 MTGMALMT 334-264 MTGMALMT 334-265 MTGMALMT 334-266 LSVLALXA 334-267 FRCYALXA 334-269 MTGMALMT 334-270 MTGMALDA 334-271 MTGMALDA 334-272 MTGMALDA 334-275 GVHLALXA 334-276 CFVLALXA 334-277 MTGMALDA 334-278 LWBOALXA 334-279 MTGMALDA 334-281 MTGMALNO 334-282 FNBGALXA 334-283 TLLSALXA 334-284 MTGMALNO 334-285 MTGMALMB 334-286 MTGMALNO 334-288 MTGMALNO 334-289 DMPLALMA 334-293 MTGMALMT 334-294 HXFRALXA 334-295 LNDNALMA 334-296 FMTNALMT 334-299 NWTNALXA 334-301 MTGMALDA 334-303 MTGMALDA 334-304 MOBLALSH 334-308 ENTRALXA 334-312 MTGMALDA 334-316 MOBLALSH 334-317 MTGMALDA 334-327 WLHLFLXA 334-330 MOBLALPR 334-334 EUFLALMA 334-335 LVRNALXA 334-337 VRBGALXA 334-341 MOBLALSH 334-342 MOBLALSH 334-343 MOBLALSH 334-344 MOBLALSH 334-346 FRHMALXA 334-347 ENTRALXA 334-361 PRVLALMA 334-365 PRVLALMA 334-366 MPVLALMA 334-368 ATMRALXA 334-369 WLHLFLXA 334-374 MCKNALXA 334-376 GRGNALXA 334-380 MOBLALSH 334-382 GNVLALXA 334-385 ARTNALXA 334-388 GNTTALXA 334-393 ENTRALXA 334-397 CLIOALXA 334-399 MTGMALDA 334-401 MOBLALAZ 334-402 MOBLALAZ 334-405 MOBLALAZ 334-408 MOBLALBF 334-409 MTGMALDA 334-412 SELMALMT 334-414 MOBLALSH 334-415 MOBLALAZ 334-416 MTGMALDA 334-417 MOBLALAZ 334-418 SELMALMT 334-419 SELMALMT 334-421 MOBLALAZ 334-427 ANDSALXA 334-431 MOBLALAZ 334-432 MOBLALAZ 334-433 MOBLALAZ 334-434 MOBLALAZ 334-438 MOBLALAZ 334-439 MOBLALAZ 334-441 MOBLALAZ 334-443 MOBLALBF 334-445 OZRKALXA 334-450 MOBLALOS 334-452 MOBLALPR 334-454 MOBLALAZ 334-456 MOBLALPR 334-457 MOBLALPR 334-460 MOBLALSH 334-469 RDLVALXA 334-470 MOBLALOS 334-471 MOBLALOS 334-473 MOBLALOS 334-474 PROTALXA 334-476 MOBLALOS 334-478 MOBLALOS 334-479 MOBLALOS 334-484 GSHNALXA 334-485 FTDVALXA 334-493 OPP ALXA 334-496 DOZRALXA 334-502 AUBNALMA 334-503 DLVLALXA 334-513 MOBLALAZ 334-514 WTMPALMA 334-516 MTGMALMT 334-519 MTGMALMT 334-522 GRDNALXA 334-527 BTLYALXA 334-529 MDWYALXA 334-537 LAPIALXA 334-540 FTMRALXA 334-541 ECLCALXA 334-542 SILSALXA 334-548 HYVLALXA 334-562 RAMRALXA 334-563 GOVLALXA 334-564 PTMNALXA 334-565 KSTNALXA 334-566 TROYALMA 334-567 WTMPALMA 334-569 HLVIALMA 334-573 ALBRALXA 334-575 MOVLALXA 334-577 MCCLALXA 334-578 EVRGALMA 334-580 BYMNALMA 334-584 PNLVALXA 334-585 ABVLALXA 334-588 HRFRALXA 334-598 DLVLALXA 334-602 MOBLALSK 334-604 MOBLALAZ 334-605 MOBLALAZ 334-607 MOBLALAP 334-610 MOBLALAZ 334-613 MTGMALNO 334-615 DTHNALXA 334-616 EUFLALMA 334-617 MOBLALSH 334-621 MOBLALSF 334-624 GNBOALMA 334-626 MOBLALSF 334-627 THMTALXA 334-628 UNTWALNM 334-633 MOBLALAP 334-636 THVLALMA 334-639 MOBLALAP 334-641 MOBLALSE 334-645 MOBLALSE 334-649 MOBLALSE 334-653 MOBLALTH 334-660 MOBLALSK 334-661 MOBLALSK 334-666 MOBLALSK 334-667 HRBOALOM 334-670 TROYALMA 334-671 DTHNALXA 334-675 MOBLALSA 334-677 DTHNALXA 334-677 DTHNALXB 334-679 MOBLALSA 334-682 CMDNALXA 334-683 MARNALNM 334-684 GENVALXA 334-687 EUFLALMA 334-690 MOBLALAZ 334-691 CTWDALXA 334-692 WCBGALXA 334-693 HDLDALXA 334-694 MOBLALAZ 334-696 CLMAALXA 334-702 DTHNALXA 334-703 OPLKALMT 334-704 OPLKALMT 334-705 OPLKALMT 334-712 DTHNALXA 334-714 DTHNALXA 334-724 TSKGALMA 334-727 TSKGALMA 334-735 BRNDALXA 334-736 NNFLALXA 334-738 UNSPALXA 334-742 OPLKALMT 334-743 MOVLALXA 334-745 OPLKALMT 334-746 PNAPALXA 334-749 OPLKALMT 334-754 FKVLALXA 334-762 ARITALXA 334-765 EXCLALXA 334-770 MOBLALAZ 334-774 OZRKALXA 334-775 CYTNALMA 334-777 DRPKALXA 334-789 BTRCALXA 334-792 DTHNALXA 334-793 DTHNALXA 334-794 DTHNALXA 334-795 ECHOALXA 334-807 TROYALMA 334-809 BRTOALMA 334-814 ASFRALXA 334-821 AUBNALMA 334-824 BLBTALXA 334-826 AUBNALMA 334-827 FRDLALXA 334-829 MTVRALMA 334-832 MTGMALMT 334-834 MTGMALMT 334-843 GLTWALXA 334-844 AUBNALMA 334-846 MLRYALXA 334-847 CHTMALXA 334-857 KWLGALXA 334-860 MTGMALMT 334-861 DPISALXA 334-862 URIHALXA 334-863 RONKALXA 334-864 LFYTALRS 334-865 GDBAALXA 334-866 CTRNALNM 334-867 BRTOALMA 334-872 SELMALMT 334-873 FWRVALXA 334-874 SELMALMT 334-875 SELMALMT 334-885 RCMLALXA 334-886 SLCMALXA 334-887 AUBNALMA 334-889 NWVIALXA 334-894 NWBCALXA 334-897 ELBAALXA 334-898 SMSNALXA 334-899 ASFRALXA 334-928 FRHPALMA 334-937 BYMNALMA 334-943 FOLYALXA 334-944 MCINALMA 334-946 SMNLALXA 334-947 RBDLALXA 334-948 GLSHALXB 334-949 BNSCALXA 334-952 FOLYALXA 334-953 MTGMALMT 334-957 IRSEALXA 334-962 LLLNALXA 334-963 PNHLALXA 334-964 LXLYALXA 334-965 MGSPALXA 334-966 CSTLALXA 334-968 GLSHALXA 334-973 BLFNALMA 334-981 ORBHALXA 334-983 MLCYALXA 334-986 ELBTALXA 334-989 SRDLALXA 334-990 FRHPALMA 334-992 DXMLALXA 334-994 SWWRALXA 334-996 ORVLALXA 73 de Jerry BHM AmprNet - kd4cim@kd4cim.ampr.org [44.100.113.19] Packet Radio - KD4CIM @ KD4CIM.AL.USA.NA Internet - kd4cim@vulcan.com (or kd4cim@amsat.org) ------------------------------ From: ko@komac.knoware.nl (kS) Subject: Radio Modems For the European License-Free Bands? Date: Wed, 25 Jan 1995 10:34:03 +0100 Organization: V2S What are those bands 9.. Mhz, ... Ghz in Europe? Are there products in these bands to build a >1Mbps wireless digital network? V2S Holland ------------------------------ From: olivier_andrieu@email.franceNet.fr (Olivier Andrieu) Subject: Questions About ADSL and HDSL Date: 25 Jan 1995 12:22:53 GMT Organization: ADIT Hi, Where can I find some informations about the HDSL and ADSL technologies (URLs, Gopher sites, FAQs) ? I am also looking for informations about the integration projects of these technologies in the future Electronic Highways in USA, Australia, Europe, etc. Thanks. ------------------------------ From: andresen@netman.dk (Finn Andresen) Subject: Implementations of the German SISA Specs? Date: 25 Jan 1995 12:49:24 GMT Organization: NetMan A/S, Denmark Hi, I am looking for some information on implementations of the German SISA specifications for management of PDH/SDH equipment. I'm lokking for the following kind of information: 1) Which vendors of PDH/SDH equipment are supporting the SISA specs? This would help us to decide whether to implement an equipment specific solution or to go for a more generic approach. 2) Are there any implementations of the SISA protocol stack available out there (freeware or comercial)? Regards, Finn Andresen E-mail: andresen@netman.dk Netman A/S, Vandtaarnsvej 77 Phone no: (+45) 39 66 40 20 DK-2860 Soeborg, Denmark Fax no: (+45) 39 66 06 75 ------------------------------ From: dimos@ics.forth.gr (Demosthenes Panagopoulos) Subject: Marine Telecom Installation Date: 25 Jan 1995 13:41:49 GMT Organization: FORTH - ICS, P.O.Box 1385, Heraklio, Crete, Greece 71110 I was wondering if anybody whould know of any information source regarding marine teleommunications installations. The question I am facing is the installation of some voice/data lines on a marina. Ideally the boats should be able to dock and hook into the marina network. Are there any special products (connectors, cables, etc.) for marine installations? Are there any other information (standards, past experience)? I would appreciate any help. Thanks, Demos ------------------------------ From: Marie-Louise.Kok@ios.nl Subject: Wireless Networks Organization: NLnet Date: Wed, 25 Jan 1995 14:30:29 GMT IOS Press is pleased to announce the publication of: WIRELESS NETWORKS Catching the mobile future Edited by: J. H. Weber, J. C. Arnbak and R. Prasad Proceedings of two combined conferences held in The Hague, The Netherlands, 18 - 23 September 1994: 5th IEEE International Symposion on Personal, Indoor and Mobile Radio Communications (PIMRC'94 ); ICCC Regional Meeting on Wireless Computer Networks (WCN'94) 1994; 1528 pp. in 4 volumes; paperback; ISBN: 90 5199 193 2 Price: HFL 390; GBP 140; DM 350; US$ 200 The professional fields of Wireless Computer Networks and Personal, Indoor and Mobile Radio Communications have, within a few years, become the fastest growing business area of telecommunications. The papers presented in these volumes on WCN focus on the emerging wireless extensions of intelligent networking and other computer services. The contributions on PIMRC concentrate on the latest developments in radio technologies and network access. If you would like to receive a full list of contents and more information on other telecommunication-books by IOS Press, please e-mail your full mailing address to Marie-Louise.Kok@ios.nl. If you would like to place an order, please e-mail Monique.Mulder@ios.nl IOS Press, Van Diemenstraat 94, 1013 CN Amsterdam, The Netherlands, fax: +31 20 620 34 19 ------------------------------ From: Hersh Jeff Date: Wed, 25 Jan 95 09:25:00 GMT Subject: Difficulty With Atlantic Bell ISDN My office (located in Eatontown, NJ, area code 908) recently had two ISDN lines installed for experimental purposes. We receive our ISDN from a #5ESS. It was obvious, despite what is written about Bell Atlantic in "Reengineering the Corporation," that it is very inexperienced and unorganized in providing ISDN service. All we asked for was two ISDN BRI lines with NT-1s. It took about two months before we were able to get the lines installed, and we have already had to replace the NT-1s once. Anyone else have experience with Bell Atlantic ISDN? Jeff Hersh, Booz, Allen & Hamilton hershj@bah.com ------------------------------ From: bklaas@cha049.ch.intel.com (Brian Klaas) Subject: Value of Motorola flip phone (Microtac 950) Date: 25 Jan 1995 01:50:52 GMT Organization: Intel Corp., Chandler, Arizona Given the fact that phones are given away free with subscription, does an old phone have any value? I changed service and was able to purchase a new phone (the exact same alpha flip phone model) with two batteries for the cost of two batteries. Now, I am left with an old phone. Is taking it apart to see what's inside its only value? Thanks. Brian Klaas ADC Design Automation Intel, Corp. (602) 554-5564 6505 W. Chandler Blvd. Mailstop CH11-91 Chandler, AZ 85226 ------------------------------ Date: Wed, 25 Jan 1995 00:31:32 EST From: John Marinelli Subject: Technical Help Needed With Pending Litigation I need a specific technical question resolved for pending litigation with Bell Canada. Here it is: Is it physically possible to infiltrate a telephone company's network, remotely manipulate the company's switches; process long distance calling; make it appear that those calls originated from a particular site and the subsequently billed to that location? Can anyone answer this question or lead me to the individual(s) that could? Any help will be justly rewarded and sincerely appreciated by yours truly. Please leave a way to get in touch! However, if you prefer to remain unknown, thanks a million, and rest assured that I will respect and protect your anonimity. Thank you for your help in this matter. Regards, John P. Marinelli jmarinel@freenet.niagara.com [TELECOM Digest Editor's Note: Yes, this generally can be done. It is not real easy, and requires a degree of sophistication by someone who knows how to do it. It involves getting into the telephone network using a 'backdoor', using a dialup and passcode. In other words, what I am saying is certain switches have a phone number you can dial into, give the correct passcode, and then manipulate or make changes to the way calls are processed as though you were in the central office itself at a terminal and keyboard. Quite a few telcos have disabled this 'feature' for obvious reasons. I guess some still have it available. I would not have the slightest idea *what* commands/passcode to use, nor the numbers to dial to get into the switch. The commands probably stay the same from one switch to the next more or less, but certainly the phone numbers and passcodes are different. Plus, I strongly suspect anyone fooling around like this leaves tracks all over the place leading back to them. PAT] ------------------------------ úÿ From: oehl@student.uni-kl.de (Georg Oehl) Subject: Re: Question on Call-Back Operators Organization: University of Kaiserslautern, Germany Date: Wed, 25 Jan 1995 09:56:12 GMT > [TELECOM Digest Editor's Note: Another problem you did not mention is the > cost of your call to the callback center. That call has to supervise also, > you see, and that costs you some amount of money. Add that to whatever you > pay for the callback part of the connection and let me know how much less > expensive it *really* is. Well, Pat, I tell you how much it is in Germany. Calls to the States from here cost you the (rounded) equivalent of 15 cents for every seven seconds of your phone call. That means billing is in those seven second increments as well; so if you make a phone call of, say, ten seconds you pay 30 cents and give the PTT a gift of four unused seconds. Hence, assuming it is possible to type six buttons on your phone within seven seconds (to enter your PIN), your initial call to the callback company costs you 15 cents. Now for the rates: I have seen Callback services that charge as much as 75 cents a minute; but the chepeast I came across so far was 51 cents per minute with a 30 second minimum and billing in six second increments. And that is without a monthly flat fee, or call surcharge. (Note: This is only for calls _from_ Germany _to_ the US of A.) So, a three minute call the direct way (ie. with "wonderful" German Telekom) costs you about $3.75. (This is all rounded). Using the Callback service it is $1.53 plus the 15 cents I used to call the Callback service, ie. $1.68. That's more than 50% cheaper! Things from France may look a little narrower, because German Telekom, as far as I know, charges the most in Europe, perhaps even in the world (which wouldn't surprise me.) But still -- you can apparently save from France too. > Part of the gimmick that makes callback services so inexpensive is > that you usually do not have to pay for a call to the USA. You dial > your number and hang up without it answering; thus no charge for that > part of the call. Why do you think AT&T was so out of joint on this > for quite awhile? They were? Was unnoticed here. > Hey, if people think they can pay for a supervised > call to the USA (and enter a password, eliminating random ringbacks) and > still get by cheaper than via straight calling through their PTT, whoever > it is, then let me know ... I may start a callback service of my own. Go right ahead. It is cheaper. The more competitors the better. > I have objected to it thus far because I don't want automated callbacks with > all the trouble those have, and I cannot pencil in a bottom line I could > live with if I offered a supervised (both senses of the word, telco charge > for inbound call to set it up and a clerk to oversee it) system. Maybe if > someone really cuts a deal with AT&T -- a very good deal -- they will be > able to accept inbound collect/800 from the distant PTT, establish a call- > back to the distant country and make an outgoing USA call ... and still > make money at it while being competitive. I could not figure out how. PAT] Well, what's the difference (in terms of security) between calling a number, letting it ring a couple of times and calling a number and _letting_ them answer to punch in your PIN? I don't see any. The point you originally tried to make I didn't understand either: misdialed calls. If someone has your Callback number, he stole it or got it in some other illegal way. People can steal Credit Cards or Credit Card numbers too and cause quite some harm to you, although a harm more of the subtle kind -- it doesn't wake you up at three o'clock in the morning. Instead, it lets you sleep and comes in the (later) morning in your credit card bill. Georg [TELECOM Digest Editor's Note: Yes, AT&T was claiming that deliberatly causing a phone to ring then disconnecting amounted to sending coded transmissions without paying for them (which it does). When it was noted that AT&T's own answering machines use 'toll-saver' techniques the same way (if ringing phone does not answer within two rings, disconnect since there are no messages waiting for you), then the company found it difficult to object to others using their network in the same way. The difference between merely calling a number, letting it ring a couple times and hanging up versus dialing a number, waiting for an answer and specifically entering a PIN number is that the former happens how many ever millions of times daily when clumsy people dial wrong numbers and realize it within seconds of finishing the dialing. They then hang up, but the callback switch has no way of knowing if the real user was giving a signal or if some careless person caused that to happen. At least by inserting a PIN, a positive, specific effort has to be made. Most wrong number callers and telemarketing people don't get that far along. PAT] ------------------------------ From: ttm@xs4all.nl (Christian van der Ree) Subject: Re: Telephony Card/Software Needed Date: Wed, 25 Jan 1995 00:29:32 GMT Organization: TTM Nederland > I've seen a couple similar questions posted but haven't seen an > answer. Please post the answer. I'm looking for cards for IBM PCs > that can handle phone calls. I need to be able to program how the > call is handled (when and what to play and record, what to do with > touch tone presses, etc). All I've seen is things for one line. I > want to start with about four lines but have the ability to upgrade to > perhaps 24, so I need multiple (four or eight) lines per card. What > are good vendors for this and where can I go for information? Thanks. The company I'm working for is developer of voice-processing software. We are also distributor of Dialogic Voice hardware. You can start with a two or four lines board and when you need more capacity, you youst plug in extra boards. All Dialogic boards come with manuals and drivers that allows you (if you are a good programmer) to make everthing you want for the DOS OS. Contact us for detailed information and pricing: TTM Nederland Rietveld 10 3641 GS Mijdrecht The Netherlands Tel. +31-297988365 Fax. +31-297981241 Or e-mail full details ------------------------------ From: satyr@bpd.harris.com Subject: Re: Radio Station Transmission Lines Organization: bpd.harris.com Date: Wed, 25 Jan 1995 14:41:27 GMT In article Daniel Ritsma writes: > I am working for a small radio station that is now using two 8kHz > lines to feed four tansmitters (AM). On one line we feed three > transmitters since they are for buildings next to each other; the other > line is for a building some 150 blocks from here. > Does anybody have experience with this? We are located in Manhattan > and NYNEX is not of much help. Getting our current two lines to work > properly without too much loos was already a great victory for us. Contact Harris Allied at (317) 962-8596 They engineer systems for Radio stations and supply equipment from many manufacturers. Should be able to help you out on all of your many possibilities. I must say that I DO work for a sister division of this company, but I think that they can help you out. ------------------------------ End of TELECOM Digest V15 #63 *****************************