From editor@telecom-digest.org Wed Apr 28 15:46:09 2004 Received: (from ptownson@localhost) by massis.lcs.mit.edu (8.11.6p2/8.11.3) id i3SJk8526512; Wed, 28 Apr 2004 15:46:09 -0400 (EDT) Date: Wed, 28 Apr 2004 15:46:09 -0400 (EDT) From: editor@telecom-digest.org Message-Id: <200404281946.i3SJk8526512@massis.lcs.mit.edu> X-Authentication-Warning: massis.lcs.mit.edu: ptownson set sender to editor@telecom-digest.org using -f To: ptownson Approved: patsnewlist Subject: TELECOM Digest V23 #213 TELECOM Digest Wed, 28 Apr 2004 15:45:00 EDT Volume 23 : Issue 213 Inside This Issue: Editor: Patrick A. Townson Book Review: "Network Security Essentials", Wlm Stallings (Rob Slade) Wheat Wireless Services Introduces Wireless Voice (VOIP News) S&P Cautions Bells on VOIP (VOIP News) IDT Uses Wi-Fi to Offer Cheaper Cell Service (VOIP News) How VoIP Can Connect the Disabled (VOIP News) Re: VOIP Connectivity to Multi Line Key Telephone Systems (Hank Karl) Re: VOIP Connectivity to Multi Line Key Telephone Systems (Scott Dorsey) Re: VOIP Connectivity to Multi Line Key Telephone Systems (Jeff Spidle) Re: 19th Century Telegraphers (jhaynes) Re: HELP! - AVT Phonexpress Entree Voicemail Info Needed (Dave Phelps) Evading the National Do-Not-Call List (Bob Hofkin) Cell Phones For Soldiers (jmayson@nyx.net) Share Day for April (TELECOM Digest Editor) All contents here are copyrighted by Patrick Townson and the individual writers/correspondents. Articles may be used in other journals or newsgroups, provided the writer's name and the Digest are included in the fair use quote. By using -any name or email address- included herein for -any- reason other than responding to an article herein, you agree to pay a hundred dollars to the recipients of the email. =========================== Addresses herein are not to be added to any mailing list, nor to be sold or given away without explicit written consent. Chain letters, viruses, porn, spam, and miscellaneous junk are definitely unwelcome. We must fight spam for the same reason we fight crime: not because we are naive enough to believe that we will ever stamp it out, but because we do not want the kind of world that results when no one stands against crime. Geoffrey Welsh =========================== See the bottom of this issue for subscription and archive details and the name of our lawyer; other stuff of interest. ---------------------------------------------------------------------- From: Rob Slade Organization: Vancouver Institute for Research into User Date: Wed, 28 Apr 2004 08:58:48 -0800 Subject: Book Review: "Network Security Essentials", William Stallings BKNTSCES.RVW 20031210 "Network Security Essentials", William Stallings, 2000, 0-13-016093-8, U$48.00/C$75.81 %A William Stallings ws@shore.net %C One Lake St., Upper Saddle River, NJ 07458 %D 2000 %G 0-13-016093-8 %I Prentice Hall %O U$48.00/C$75.81 201-236-7139 fax: 201-236-7131 %O http://www.amazon.com/exec/obidos/ASIN/0130160938/robsladesinterne http://www.amazon.co.uk/exec/obidos/ASIN/0130160938/robsladesinte-21 %O http://www.amazon.ca/exec/obidos/ASIN/0130160938/robsladesin03-20 %P 366 p. %T "Network Security Essentials: Applications and Standards" The existence of this book is a bit odd, particularly in view of the fact that it shares so much material with Stallings' "Cryptography and Network Security." The (clear and structured) preface, however, states that the intent is to provide a practical survey of network security applications and standards, particularly those in widespread use. As with the earlier work, this book is intended to serve both as a textbook for an academic course of study, and as a self-study and reference guide for practicing professionals. There is reduced detail in regard to cryptography. Chapter one is an introduction, and provides a good list of basic concepts and vocabulary. It may not be completely apparent to all readers that the emphasis is on threats to data transmissions and there is limited review of attacks on functioning systems. Part one deals with cryptography. Chapter two covers symmetric block ciphers in fundamental but sound terms, illustrated by an explanation of DES (Data Encryption Standard). The logic is heavily symbolic at times, but that should not be an impediment to the reader. It is interesting that chapter three views asymmetric cryptography as an extension of message authentication codes, but the explanations are articulate, including both algebraic and numeric examples, although the numeric illustrations could be fuller. Part two deals with network security applications. Chapter four looks at authentication applications, concentrating on Kerberos and X.509. The examples of email security systems given in chapter five are PGP (Pretty Good Privacy) and S/MIME (Secure/Multipurpose Internet Mail Extension). Security provisions for the Internet Protocol (IP) itself are reviewed in chapter six. Web security, in chapter seven, discusses SET (Secure Electronic Transaction) and SSL (Secure Sockets Layer). Chapter eight reviews SNMP (Simple Network Management Protocol) both in terms of network management for security purposes, and in regard to cryptography for authentication of the application itself. Part four outlines general system security. Intruders and malicious software are lumped together in chapter nine, with a reasonable outline of the types of malware, but not dealing as well with viruses themselves. (Activity Monitors are referred to as "third generation" tools, when they actually predate both signature scanners ["first generation"] and heuristics ["second generation"].) Chapter ten finishes off the book with a description of firewalls, but has a rather odd inclusion of basic access control and trusted systems. Each chapter ends with a set of recommended readings and problems. Many chapters also have appendices giving additional details of specific topics related to the subject just discussed. A very reasonable guide, although possibly less practical than it intended to be. copyright Robert M. Slade, 2003 BKNTSCES.RVW 20031210 ====================== (quote inserted randomly by Pegasus Mailer) rslade@vcn.bc.ca slade@victoria.tc.ca rslade@sun.soci.niu.edu Doing evil is nothing but turning away from learning. - Augustine (354-430), On Free Choice of the Will http://victoria.tc.ca/techrev or http://sun.soci.niu.edu/~rslade ------------------------------ From: VOIP News Date: Wed, 28 Apr 2004 21:25:53 -0400 Subject: S&P Cautions Bells on VOIP Reply-To: VoIPnews@yahoogroups.com http://www.lightreading.com/document.asp?site=lightreading&doc_id=50994 S&P Cautions Bells on VOIP A broad warning issued last week by credit rating service Standard & Poor's has cast a lingering dark cloud over regional Bell companies (RBOCs). It's also raised new questions about VOIP regulation. S&P says RBOCs stand to lose about $5 billion in annual revenues if regulators make voice-over-IP providers exempt from federal and state access fees. RBOCs currently rely on carrier access fees for about 22 percent of their total operating revenues, or about $20 billion. In its estimate, S&P assumed RBOCs will lose about 15 percent of residential access lines with average monthly bills of $24 each to cable companies, independent carriers, and long-haul carriers that offer VOIP service. Loss of local lines would account for about four-fifths of the $5 billion shortfall, and loss of access fees would make up the rest. The overall loss could be mitigated by VOIP providers' recurring payments to RBOCs for local connectivity services such as ISDN primary rate interface or toll-free 800 service. On the other hand, the loss could soar beyond $5 billion if VOIP providers use leased facilities to terminate large volumes of long-distance calls. The issue hinges partly on whether the Federal Communications Commission (FCC), states, and courts require VOIP carriers to pay access fees to RBOCs for VOIP traffic transmitted over, or terminated on, the RBOC's networks. Full story at: http://www.lightreading.com/document.asp?site=lightreading&doc_id=50994 How to Distribute VoIP Throughout a Home: http://michigantelephone.mi.org/distribute.html If you live in Michigan, subscribe to the MI-Telecom group: http://groups.yahoo.com/group/MI-Telecom/ ------------------------------ From: VOIP News Date: Mon, 26 Apr 2004 11:27:20 -0400 Subject: IDT Uses Wi-Fi to Offer Cheaper Cell Service Reply-To: VoIPnews@yahoogroups.com http://www.usatoday.com/money/industries/telecom/2004-04-21-idt-wifi_x.htm By Paul Davidson, USA TODAY Believe it or not, 43% of U.S. consumers still don't have a cell phone, many for budget reasons. Now, long-distance company IDT is aiming at low- to moderate-income holdouts with a new breed of inexpensive service that offers mobile service but only in certain areas. IDT plans to introduce a semi-mobile phone service that works in areas equipped with Wi-Fi, a popular wireless technology linked to the Internet. The strategy could pose at least a modest threat to the big wireless carriers as it marries two hot new technologies: Wi-Fi and Internet-based phone service. The service price will be no more than $2 a month, with calls costing less than 5 cents a minute; initially, customers will likely prepay. Unlike with cell phones, incoming calls are free. While IDT initially will give away the phones equipped with Wi-Fi chips, they will eventually cost about $100. Full story at: http://www.usatoday.com/money/industries/telecom/2004-04-21-idt-wifi_x.htm ------------------------------ From: VOIP News Date: Wed, 28 Apr 2004 01:12:32 -0400 Subject: How VoIP Can Connect the Disabled Reply-To: VoIPnews@yahoogroups.com http://www.businessweek.com/technology/content/apr2004/tc20040428_4395_tc116.htm Internet-based telephony holds great promise for allowing the blind and deaf to communicate much better and become more productive Don Barrett's phone is his best assistant at work. Barrett, who's blind, has a phone that uses spoken voice to let him know who the caller is or to read to him the messages people leave when he misses a call. He can even use voice commands to tell his phone to find a number in his electronic Rolodex. None of these tasks are possible with a traditional phone, but Barrett is ahead of the game. He's using a PC-based phone that runs on voice-over-Internet-protocol (VoIP) technology. With some extra software, he can also hear his e-mail and voice mail from the Internet. At his job as assistive-technology specialist at the U.S. Education Dept., Barrett says the VoIP gear has greatly improved his performance. "I can decide whether to take a call. For me, that's huge." While VoIP is creating quite a stir in the telecommuncations field overall (see BW Online, 1/6/04, "Finally, 21st Century Phone Service"), it's an especially promising technology for people with disabilities. VoIP integrates the phone, voice mail, audioconferencing, e-mail, instant messaging, and Web applications like Microsoft Outlook on one secure, seamless network. Plus, workers can use their PC, laptop, or handheld as a VoIP phone from virtually anywhere, with the same phone number, which benefits telecommuters, including those whose mobility is impaired and must work from home. Full story at: http://www.businessweek.com/technology/content/apr2004/tc20040428_4395_tc116.htm ------------------------------ From: Hank Karl Subject: Re: VOIP Connectivity to Multi Line Key Telephone Systems Date: Wed, 28 Apr 2004 10:55:10 -0400 Organization: NETPLEX Internet Services - http://www.ntplx.net/ One issue with this is lightning protection. Your KSU will isolate the incoming lines from its handset, and (one hopes) the other phone sets. It may not isolate one incoming line from another. Thus, if you get a lighting strike, you may burn out your VoIP TA (and possibly even more equipment down the (ethernet) line. So you probably should put some sort of external protection on the line. On 27 Apr 2004 13:50:16 -0700, dave@ces-hawaii.com (agolfer) wrote: > I have a multi-line key telephone system in my office. It is not VOIP > compatible. Is there a way that I can use VOIP services from > providers like Vonage for voice/fax? From what I see on Vonage's > website, it seems to imply that their telephone adapter box will port > out analog voice circuit(s) that I could connect to CO line ports on > my KSU. > From what I've read in this forum, the adapter provides two phone > circuits, however, it can only handle one voice connection at a time. > Does anyone have any experience in using Vonage or other VOIP service > on a multi-line key telephone system? > Aloha, > Dave > [TELECOM Digest Editor's Note: As long as you *know how* (or have a > technician on staff who knows how to wire multi-line phones), Vonage > (and I assume net8 and Pulver/FWD and others) will work on it just > fine. No one ever screws around with the innards on a Bell five line/ > six-button with hold for example. The work is always done at the > terminal box by punch-downs on the terminals inside. But Vonage does > not care; it can make an 'appearance' on a line button as well as on a > single-line instrument. I cannot predict how the 'hold circuit' would > work (if the Vonage line was being 'held') or the reliability of the > interuppter/annunciator notifing you of a call. I would suppose since > Vonage at least has a REM-3 status, the current therein is probably > sufficient to do all those ancillary tasks as well. And one of my > e-coupon takers did link his Vonage line over to a 'dial 9' level > trunk on a very tiny residential PBX and he said that it works fine as > well. Dialing 9 on the little PBX is just like lifting the receiver on > the phone connected to the Vonage. Dial tone works fine, he uses any > phone on his system to dial out through Vonage. PAT] ------------------------------ From: kludge@panix.com (Scott Dorsey) Subject: Re: VOIP Connectivity to Multi Line Key Telephone Systems Date: 28 Apr 2004 13:34:00 -0400 Organization: Former users of Netcom shell (1989-2000) agolfer wrote: > I have a multi-line key telephone system in my office. It is not VOIP > compatible. Is there a way that I can use VOIP services from > providers like Vonage for voice/fax? From what I see on Vonage's > website, it seems to imply that their telephone adapter box will port > out analog voice circuit(s) that I could connect to CO line ports on > my KSU. Yes, although you need to know that the Vonage adaptor will not do ground-start, so you need a KSU that can deal with that. > From what I've read in this forum, the adapter provides two phone > circuits, however, it can only handle one voice connection at a time. Right, but you can get multiple adaptors. They may still be available in rackmount form. --scott "C'est un Nagra. C'est suisse, et tres, tres precis." ------------------------------ Reply-To: Jeff Spidle From: Jeff Spidle Subject: Re: VOIP Connectivity to Multi Line Key Telephone Systems Date: Wed, 28 Apr 2004 13:36:59 -0500 I know that connecting a Cisco ATA186 to a key system works. I had to do it for one of my customers Emergency Ops Center. They had an old 1A2 system. The ATA provides battery and ring to the key system identical to what the CO does. They press a line button on the key set and the ATA goes off hook with no problem. Jeff Spidle Greenwich Technology Partners jspidle at greenwichtech dot com agolfer wrote in message news:telecom23.212.10@telecom-digest.org: > I have a multi-line key telephone system in my office. It is not VOIP > compatible. Is there a way that I can use VOIP services from > providers like Vonage for voice/fax? From what I see on Vonage's > website, it seems to imply that their telephone adapter box will port > out analog voice circuit(s) that I could connect to CO line ports on > my KSU. > From what I've read in this forum, the adapter provides two phone > circuits, however, it can only handle one voice connection at a time. > Does anyone have any experience in using Vonage or other VOIP service > on a multi-line key telephone system? > Aloha, > Dave > [TELECOM Digest Editor's Note: As long as you *know how* (or have a > technician on staff who knows how to wire multi-line phones), Vonage > (and I assume net8 and Pulver/FWD and others) will work on it just > fine. No one ever screws around with the innards on a Bell five line/ > six-button with hold for example. The work is always done at the > terminal box by punch-downs on the terminals inside. But Vonage does > not care; it can make an 'appearance' on a line button as well as on a > single-line instrument. I cannot predict how the 'hold circuit' would > work (if the Vonage line was being 'held') or the reliability of the > interuppter/annunciator notifing you of a call. I would suppose since > Vonage at least has a REM-3 status, the current therein is probably > sufficient to do all those ancillary tasks as well. And one of my > e-coupon takers did link his Vonage line over to a 'dial 9' level > trunk on a very tiny residential PBX and he said that it works fine as > well. Dialing 9 on the little PBX is just like lifting the receiver on > the phone connected to the Vonage. Dial tone works fine, he uses any > phone on his system to dial out through Vonage. PAT] ------------------------------ Subject: Western Union (was Re: Book Review: 19th Century Telegraphers) Reply-To: jhaynes@alumni.uark.edu Organization: University of Arkansas Alumni From: haynes@alumni.uark.edu (Jim Haynes) Date: Wed, 28 Apr 2004 17:34:57 GMT I don't believe Western Union had much in the way of "last mile" wires except in the largest cities. Elsewhere they had to lease pairs from the telephone company. It's my understanding that when W.U. acquired TWX from the Bell System there was a period of time in which they got to use the Bell wire plant at below-market rates; but when that ended they had to pay the same price as everyone else and that hastened the demise of TWX/Telex. W.U. introduced Telex to the U.S. about 1958. In my opinion this was a major mistake; obviously they thought it was a good idea. It put W.U. into direct competition with Bell, TWX versus Telex; and Bell pretty much had a lock on the local loops needed to furnish the service. Bell also soon after introduced the Data Phone data sets (modems leased from the telephone company) which allowed customers to put any kind of terminal they wanted on the switched network. While telephone toll calls were higher priced than TWX calls, the cost of telephone calls was falling rapidly. Bringing in Telex required W.U. to acquire a lot of electromechanical switching equipment (most if not all of it from Siemens) at a time when electronic switching was about to arrive and push the former off the stage. W.U. also had to acquire a bunch of 50-baud teleprinters, first from Siemens and later from Teletype. Soon after, TWX went from manual switchboards and special circuits to using the existing voice switching plant; and voice was such a major user of the plant that the marginal cost of running TWX over it was quite small. Customers were ill-served since TWX and Telex didn't interconnect (at first) and thus a customer had to subscribe to both services or be cut off from part of their business relations. Then W.U. acquired TWX at a time when the best years of both services were past. I wonder if the executives of either company realized it at the time. W.U. had spent a lot of money on fax for many years but never realized a large payoff from it. There was about to be a new generation of fax machines which blew away the market for TWX/Telex. (Aided considerably by the CarterFone decision) jhhaynes at earthlink dot net ------------------------------ From: Dave Phelps Subject: Re: HELP! - AVT Phonexpress Entree Voicemail Info Needed Date: Wed, 28 Apr 2004 00:46:46 -0500 Organization: Posted via Supernews, http://www.supernews.com In article , user@teknidat.com.easynews.com says: > I just acquired a Toshiba DK424 pbx with an attached AVT Phonexpress > Entree voicemail system with no docs/disks for the voicemail. This > obviously is an obsolete system but if it solves my voicemail > requirements I would like to get it functioning. The AVT boots up w/ > OS2 to a status screen but I have no idea where to go from there. Any > help/hints would be appreciated. > Thanks, > Mikail AVT made a great voicemail. The entree was a pared down version of the callxpress product, as I recall. After the os2 screen, it should automatically come up to the AVT call processing screen. This will probably take several minutes, while the system rebuilds indexes and databases. It shows on the screen while it's doing this. If for some reason the startup script was removed from the os2 startup.cmd (IIRC) batch file, I don't recall what the executable file is. Seems like it might be px.exe (or cx.exe) ... something like that. With the Toshiba, I believe it used inband integration. The integration digits should be pre-configured on the voicemail. Dave Phelps DD Networks www.ddnets.com deadspam=tippenring ------------------------------ From: Bob Hofkin Subject: Evading the National Do-Not-Call List Date: Wed, 28 Apr 2004 11:01:09 -0400 [PAT, Please remove my email address from the message. I have more than enough spam as it is.] An outfit called the National Consumer Council (NCC) placed a prerecorded phone call to my home this morning. They were offering a credit repar service. Two little problems: I am on the FTC's do-no-call list, and there was no CLID information provided. The IRS lists NCC as a public charity, so apparently the organization is exempt from the do-not-call list restrictions. I gather that NCC's contributors are a couple of credit repair companies that benefit from referrals; nowhere on their web site (www.thencc.org) did I see any solicitation for contributions from the general public. The NCC phone rep was a little vague on the charitible services they provide. He told me is was "advice." Curious readers may want to contact the organization at 800-990-3990 to inquire further. Bob That's another fine message you've gotten us in. ------------------------------ Date: Wed, 28 Apr 2004 10:20:37 -0500 From: jmayson@nyx.net Subject: Cell Phones For Soldiers Organization: Nyx Net, The Spirit of the Night What kind of cellular infrastructure does Iraq have? http://www.foxnews.com/story/0,2933,118397,00.html http://www.cellphonesforsoldiers.com/ Girl Starts 'Cell Phones for Soldiers' Program Most of us can reach our loved ones with the press of a few buttons. But that's not the case for soldiers in Iraq. One soldier from Massachusetts recently rang up a $7,000 cell phone bill that neither he nor his family could pay. But thanks to 13-year-old Brittany Bergquist (search), who with the help of her brother started "Cell Phones for Soldiers," phoning home is now easier for men and women fighting in the war. John Mayson Austin, Texas, USA [TELECOM Digest Editor's Note: Is the war still going on? I was almost certain Dubya Bush had declared the hostilities were over nearly a year ago, sometime around last May. And the past 'interim' period of government is to end on June 30 when Iraq will presume once again to manage its own affairs, unless in the meantime Bush gets any more religious visions and decides to keep the confict going on. Brittany Bergquist has a great idea; but John, you forgot to mention how the rest of us can help. It is a duplication of effort, since the USO (national service people's organization) is also in Iraq with their canteen services (traditional coffee and food and since about 1990 with e-canteen services). While they have coffee or other beverages and sandwhiches/donuts/other food *at no charge* the guys also can use the computers and telephones *at no charge* through arrangements the USO has made with certain telcos -- notably AT&T and Sprint -- and cell phone carriers. Brittany deserves our thanks for her efforts, but I believe it would be better if she were to join forces with USO since that organization already has things in place. If you want to help Brittany you may Google search for her and find out what to do, or likewise USO needs mega-help keeping their e-canteen services up and running, providing email, web-page browsing telephone/VOIP/cell phone service going. The Bush War Against Terrorism (sometimes referred to as his -- err, God's -- War Between the Muslim Nations and the Fundamentalist Christians) isn't scheduled to end at least until the first Tuesday after the first Monday in November, or sometime much later. So check with Brittany or the USO, but whatever you do, don't leave our guys just hanging out there with no way to reach *their* friends and family. Its certainly not their fault. PAT] ------------------------------ Date: Wed, 28 Apr 2004 14:15:00 EDT From: TELECOM Digest Editor Subject: Share Day For April Instead of changing the Digest over to an advrtising supported forum, I have always elected to keep it as a user supported forum, and for the most part keep it spam and virus free. I am *only* able to do this because of financial support from readers here, and if you would rather not see these messages every month, then please pitch in and help now and then! Consider it sort of like public radio, which goes on for days at a time trying to raise money ... and maybe I should adopt the same system. Turn over the entire Digest once or twice a year to fund raising (entire issues, etc) and stop doing it when the budget for the year has been raised. But for now, I will stick with the present system of devoting a few messages at the end of each month to raising money for the Digest publication expenses. Out of 400-500 messages per month, in a spam, virus free environment, two or three (only) devoted to fund raising. You know who you are; please provide some help here financially. You can use Pay Pal to donate with a credit/debit card by going to our web site http://telecom-digest.org and at the bottom of the home page look for the PayPal 'donate' button. Or if you prefer, send a check or money order to Patrick Townson/TELECOM, Post Office Box 50, Independence, Kansas 67301-0050. The amount you send is entirely up to you. You know best how much you can afford and whether or not this Digest has any value for you. Thank you very much. Patrick Townson, Editor/Publisher TELECOM Digest ------------------------------ 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 networks such as Compuserve and America On Line, Yahoo Groups, and other forums. It is also gatewayed to Usenet where it appears as the moderated newsgroup 'comp.dcom.telecom'. TELECOM Digest is a not-for-profit, mostly non-commercial educational service offered to the Internet by Patrick Townson. All the contents of the Digest are compilation-copyrighted. You may reprint articles in some other media on an occasional basis, but please attribute my work and that of the original author. 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