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Volume 28 : Issue 121 : "text" Format

Messages in this Issue:
  Re: AT&T to discontinue CallVantage voip service 
  Re: AT&T doubling 3G capacity 
  Waveguide (was "size a major consideration...")  
  Re: AT&T to discontinue CallVantage voip service 
  FiOS in MDU Buildings 

====== 27 years of TELECOM Digest -- Founded August 21, 1981 ====== Telecom and VOIP (Voice over Internet Protocol) Digest for the Internet. 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, and other stuff of interest. ---------------------------------------------------------------------- Date: Sat, 2 May 2009 01:38:00 +0000 (UTC) From: danny burstein <> To: Subject: Re: AT&T to discontinue CallVantage voip service Message-ID: <gtg85o$epm$> In <> John Levine <> writes: >> Can someone recommend another VOIP service? >I didn't like Vonage either, but I've been reasonably happy with Lingo, >the voip service from Primus Telecommunications, a largish international >long distance telco. >If interested, write me directly and I'll send you a coupon. Vonage is certainly more expensive than the new comers, but let's give them credit where it's due - they pretty much are the folk who pushed this whole technology out there to the public. So I'll give them a bit more of a look than I would the others. That being said, the economics of most VOIP companies are very, very, shaky, and are based on _huge_ dept loads. Oh, and their business model can colapse very quickly with some regulatory changes. I personally would recommend two services. The first is Skype, which is "free" to any other Skype account and pretty cheap to a PSTN number. They've got a rate card, with plenty of options at The second is available to folk who already have a t-Mobile cellular account. They'll provide you with a special router which accepts a SIM card, and that'll give you a psuedo-landline jack out the back of it (which you can hook up to a landline phone, or a wireless unit, or others stuff). Cost is $10/month plus taxes and fees, which winds up totalling about $15 month. Again, this is only applicable if you've already got a t-Mobile cellular account. I'm mentioning the latter one because t-Mobile is a valid fullscale telco, thus the VOIP portion isn't likely to disappear without notice. Disclosure: I'm a t-mobile user and shareholder. Oh, one related point. It's pretty important to have a router that has a "quality of service" option for the VOIP packets. Otherwise anything else going on at the same time, such as your e-mail or web browsing, could easily cause you grief. (The QOS isn't perfect, but it makes a big difference). -- _____________________________________________________ Knowledge may be power, but communications is the key [to foil spammers, my address has been double rot-13 encoded] ***** Moderator's Note ***** I wonder if Vonage is using a new "single port" router because of QOS issues. If the Vonage box has to be first in line between the cable modem or dsl modem and the "regular" router feeding your other Internet usage, then Vonage gets first pick at the bandwidth. Bill Horne Temporary Moderator ------------------------------ Date: 1 May 2009 22:10:21 -0400 From: (Scott Dorsey) To: Subject: Re: AT&T doubling 3G capacity Message-ID: <gtga2d$8fl$> Dan Lanciani <> wrote: >|***** Moderator's Note ***** >| >|Is Readnews Open Source? > >Yes, it is part of B news. But it is very, very old. I'm probably >the only person still running it... Out of curiosity, have you considered upgrading to a more modern newsreader, like rn? --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." ***** Moderator's Note ***** Scott, Please publish a list of the newsreaders and combined email/news clients available for open source users. I'm particularly interested in software for the KDE environment. Thank you! Bill Horne Temporary Moderator ------------------------------ Date: Sat, 02 May 2009 08:43:32 -0500 From: Neal McLain <> To: Subject: Waveguide (was "size a major consideration...") Message-ID: <> Temporary moderator wrote: > I'm surprised at the difference in loss of waveguide vs. coax: > all the cell sites I've ever seen appear to use coax, so either > they're using the flexible type [of waveguide] or the cellular > engineers are employing the coax loss to contribute a large part > of their loss budget for the antenna arrays being used. I think what you're seeing on cell towers is flexible waveguide ("Heliax"): Back in the good ol' days (before this fiber optic stuff came along), many of us older cable guys used flexible waveguide for 12- and 18-GHz microwave transmission systems. We could transmit the entire CATV spectrum over a distance of about 25 miles. Back then, of course, the "entire CATV spectrum" only extended up to about 400 MHz, or channel 53. These systems could be used to distribute signals throughout a city, or to distribute signals to distant communities in rural areas. In the 1970s and early 80s, hundreds of these systems were in use. These systems used the same off-the-shelf RF transmission components -- antennas, radomes, waveguide, connectors -- that manufacturers were making for other industries. At the time, Andrew was the biggest manufacturer in the business. You could see those big Andrew microwave antennas (easily identified by the red "lightning flash" logo on the radome) hanging on water towers in small towns all across America. Most of the radio equipment was manufactured by Hughes Aircraft Company. When I first got into the cable business, I was surprised to learn that a big defense contractor like Hughes was making stuff for the cable industry. But in retrospect, it makes sense: the stuff Hughes was building for the cable industry wasn't much different from the stuff they were building for other purposes. The basic components were essentially the same. Of course, once fiber came along, all this microwave stuff suddenly became obsolete. Most of the old microwave systems have been replaced with fiber, and the equipment has been removed. Some of it has been sold to cable companies in South America, but most of it has been recycled or junked. Neal McLain Retired Cable Guy ------------------------------ Date: Sat, 02 May 2009 07:35:47 -0700 From: Sam Spade <> To: Subject: Re: AT&T to discontinue CallVantage voip service Message-ID: <8TYKl.2031$%_2.1920@newsfe04.iad> Robert Neville wrote: > > In my experience, call quality issues from any company are usually related to > bandwidth constraints and jitter on the underlying connection and not with the > VOIP service. > > ***** Moderator's Note ***** > > Isn't that a bit like blaming poor line quality on old cable and dirty splices? > > Bill Horne > Temporary Moderator A better analogy is to blame poor VOIP quality on your "inside wiring" and bad telephone sets. I have had Vonage since its inception and also have a very high speed ISP. In the first couple of years there were some echo issues, but those have long since disappeared. I really like having my primary number in DC although I am in California. I also have one virtual number that is local. When you factor in Vonage's package of features and its giant free calling area (includes part of Europe) no one else comes close. ------------------------------ Date: Sat, 02 May 2009 09:00:41 -0500 From: Neal McLain <> To: Subject: FiOS in MDU Buildings Message-ID: <> Back in July 2006, there appeared on this list a thread-within-a-thread concerning the installation of Verizon FiOS (and, by extension, similar FTTH offerings) in MDU buildings. Lisa Hancock raised a question about why Verizon did not offer FiOS in her condo building. I responded with a generic explanation about some of the problems that I thought Verizon would face, based on my own experiences getting cable TV installed in MDU buildings back in the 1970s and 80s. See This very subject came up at a recent Broadband Properties conference in Dallas. According to an April 28 report by Communications Technology magazine: "Verizon's SVP Technology Mark Wegleitner extolled the virtues of laying fiber all the way to each separate unit with terminations at in-unit optical network terminals (ONTs). But real property developers and managers pointed out certain problems with bringing one particular provider's equipment all the way into a resident's apartment or condominium." Rest at The problems that building owners mention certainly sound familiar! Question for Lisa: has Verizon installed FiOS in your building yet? Neal McLain ------------------------------ TELECOM Digest is an electronic journal devoted mostly to telecom- munications topics. It is circulated anywhere there is email, in addition 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. The Telecom Digest is currently being moderated by Bill Horne while Pat Townson recovers from a stroke. Contact information: Bill Horne Telecom Digest 43 Deerfield Road Sharon MA 02067-2301 781-784-7287 bill at horne dot net Subscribe: telecom Unsubscribe: telecom This Digest is the oldest continuing e-journal about telecomm- unications on the Internet, having been founded in August, 1981 and published continuously since then. Our archives are available for your review/research. We believe we are the oldest e-zine/mailing list on the internet in any category! URL information: Copyright (C) 2008 TELECOM Digest. All rights reserved. Our attorney is Bill Levant, of Blue Bell, PA. ************************ --------------------------------------------------------------- Finally, the Digest is funded by gifts from generous readers such as yourself who provide funding in amounts deemed appropriate. Your help is important and appreciated. A suggested donation of fifty dollars per year per reader is considered appropriate. See our address above. Please make at least a single donation to cover the cost of processing your name to the mailing list. All opinions expressed herein are deemed to be those of the author. Any organizations listed are for identification purposes only and messages should not be considered any official expression by the organization. End of The Telecom digest (5 messages) ******************************

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