31 Years of the Digest ... founded August 21, 1981
The Telecom Digest for March 25, 2013
====== 31 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 Bill Horne 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 that person, or email address
Addresses herein are not to be added to any mailing list, nor to be sold or given away without the explicit written consent of the owner of that address. 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: Sun, 24 Mar 2013 00:19:54 -0400 From: Monty Solomon <firstname.lastname@example.org> To: email@example.com. Subject: Your Phone vs. Your Heart Message-ID: <firstname.lastname@example.org> Your Phone vs. Your Heart By BARBARA L. FREDRICKSON March 23, 2013 CAN you remember the last time you were in a public space in America and didn't notice that half the people around you were bent over a digital screen, thumbing a connection to somewhere else? Most of us are well aware of the convenience that instant electronic access provides. Less has been said about the costs. Research that my colleagues and I have just completed, to be published in a forthcoming issue of Psychological Science, suggests that one measurable toll may be on our biological capacity to connect with other people. Our ingrained habits change us. Neurons that fire together, wire together, neuroscientists like to say, reflecting the increasing evidence that experiences leave imprints on our neural pathways, a phenomenon called neuroplasticity. Any habit molds the very structure of your brain in ways that strengthen your proclivity for that habit. Plasticity, the propensity to be shaped by experience, isn't limited to the brain. You already know that when you lead a sedentary life, your muscles atrophy to diminish your physical strength. What you may not know is that your habits of social connection also leave their own physical imprint on you. How much time do you typically spend with others? And when you do, how connected and attuned to them do you feel? Your answers to these simple questions may well reveal your biological capacity to connect. ... http://www.nytimes.com/2013/03/24/opinion/sunday/your-phone-vs-your-heart.html
Date: Sat, 23 Mar 2013 21:49:14 -0400 From: "Fred Goldstein" <email@example.com> To: firstname.lastname@example.org. Subject: Re: More Extensions and Lightning Protection Message-ID: <email@example.com> On 3/23/2013 1:52 PM, David Lesher wrote: > John Levine <firstname.lastname@example.org> writes: > >>> Linksys says the maximum number of extensions on one line is two. > >> Linksys is being very conservative. Three phones will probably work >> fine, particularly if they are modern phones with electronic ringers. > > I agree with John. Most tweedle-deedle phones draw 0.1-0.3 REN's; not > the 1.0 of a real phone such as a WECO 2500 set. > But oddly, when I looked at my 2006-ish Panasonic office phone (a corded speakerphone/answering machine), its REN was 1.0B. The 2005-ish "AT&T" (AAT licensee) version of same had REN 1.1B! So not all phones put on a low ringer load. So it's worth looking at the RENs on your devices and adding them up. The old CO standard was to support 5, but most home ATAs are lower, like the one in question. Power ring is one of the harder things for solid-state circuits to synthesize; semiconductors usually like 5 DC volts and down, not 90 volts AC! There are of course semis that can handle it, but power is not free there. -- Fred Goldstein k1io fred "at" ionary dot com
Date: Sun, 24 Mar 2013 07:49:53 -0600 From: "Fred Atkinson, WB4AEJ" <email@example.com> To: firstname.lastname@example.org. Subject: Re: More Extensions and Lightning Protection Message-ID: <email@example.com> At 01:20 AM 3/24/2013, you wrote: >Date: Sat, 23 Mar 2013 17:52:04 +0000 (UTC) >From: David Lesher <firstname.lastname@example.org> >To: email@example.com. >Subject: Re: More Extensions and Lightning Protection >Message-ID: <firstname.lastname@example.org> > >John Levine <email@example.com> writes: > > >> Linksys says the maximum number of extensions on one line is > >> two. > > >Linksys is being very conservative. Three phones will probably work > >fine, particularly if they are modern phones with electronic ringers. > >I agree with John. Most tweedle-deedle phones draw 0.1-0.3 REN's; not >the 1.0 of a real phone such as a WECO 2500 set. Thanks for the information, guys. As far as the lightning protection, Mike Sandman has a device. So I guess that when I am ready to run that extension out to the work shop, I will be able to use those protectors to protect the ATA and the phone(s) in the work shop. This is what he showed me: http://www.sandman.com/surge.html#KIT4A Regards, Fred
Date: Sun, 24 Mar 2013 08:01:01 -0500 From: Frank Stearns <firstname.lastname@example.org> To: email@example.com. Subject: Service Migration Advice Message-ID: <zJydnQ-M35WQZNPMnZ2dnUVZ_oadnZ2d@posted.palinacquisition> I'm not a telecom professional but am fascinated by telco engineering and systems. It's frustrating when consumer/retail-level customer service folks aren't educated or have no real systems understanding, so I'm appealing to the pros here for a bit of advice or suggestions. In the next few weeks, I will be moving to temporary housing several states away, then a few months after that to permanant housing in that same new area. The first apparent fib I was told by Century Link CS sometime back was the ability to move my current land-line number (have had it for 33 years) to a different area code -- and still use the old area code. (There are reasons to keep this number, even in a different location, but I won't waste time on those right now.) That trans-area code move seemed counter to what I've understood about the "traditional" telco system, but I was assured that 21st technology and systems allowed for this. Still doubting, I called again a day later and got the same answer from another Century Link CS rep -- no problem moving land line numbers around, even to different area codes. When I called a 3rd time a few days back to actually do this, I was told "no, sorry, we can't do that." If that's true, it seems the only option I have is to port that old land line number to a new cell phone or perhaps a VOIP account. I might do the cell phone port while at the temp housing, then move it to VOIP when finally in the permanent housing. (Temp housing internet connection is poor, thus limiting VOIP options. Excellent internet service exists at the permanent location, however.) I would not carry that new cell phone, it would sit on the desk and be treated as a stationary land-line phone. (I already have a cell and cell number that I want to maintain, and don't want to carry two phones. Cell providers tell me I can only have one number per cell phone.) I also have a custom ringing number on my old land line account. Inbound toll-free calls are forwarded there. This is perhaps easier, as the toll-free service provider can forward inbound toll-free calls just about anywhere. The ring pattern identifying an inbound toll-free call would be gone, but that's not a serious problem. It seems that what I really need is the opposite of what google voice provides: they appear to offer one inbound number that can then be fanned out to various numbers. But what I'd like is the ability to collect inbound calls to multiple numbers and forward them one number (current cell, for example), all without the need for a "permanent" account from the likes of Century Link. Right now, it seems the pragmatic solution is that porting of my old land number to a new cell phone (this can be done for sure). Toll-free calls would be forwarded to that new cell as well. Fortunately, at the moment, the call volume on the old land and toll-free numbers is light and I can likely do fine with a cheap, pre-paid, non-contract cell. Sorry to be so long-winded; hope I've made the situation clear. I'd be most interested if anyone has better ideas about managing this changing situation, and even a final word if it is possible to put any area code in a different area code. (And if yes, what I need to say to a CS rep to make that happen.) Thanks in advance Frank -- .
Date: 23 Mar 2013 23:35:30 -0000 From: "John Levine" <firstname.lastname@example.org> To: email@example.com. Subject: Re: More Extensions and Lightning Protection Message-ID: <firstname.lastname@example.org> >>> Linksys says the maximum number of extensions on one line is >>> two. > >>Linksys is being very conservative. Three phones will probably work >>fine, particularly if they are modern phones with electronic ringers. > >I agree with John. Most tweedle-deedle phones draw 0.1-0.3 REN's; not >the 1.0 of a real phone such as a WECO 2500 set. John is also speaking from experience. I have an SPA-1001 plugged into the second line of my home wiring with at least three phones, and it works fine. I have the technical equivalent of a 2500 set* but it's not plugged into that line. R's, John * - a Mickey Mouse phone I bought from SNET about 35 years ago, with genuine Western Electric guts, including a polarity sensitve touch tone pad. No, you can't have it.
Date: Sun, 24 Mar 2013 07:08:51 -0700 (PDT) From: Wes Leatherock <email@example.com> To: firstname.lastname@example.org. Subject: Re: More Extensions and Lightning Protection Message-ID: <1364134131.82110.YahooMailClassic@web125203.mail.ne1.yahoo.com> --- On Sat, 3/23/13, David Lesher <email@example.com> wrote: > John Levine <firstname.lastname@example.org> > writes: > >>> Linksys says the maximum number of extensions on one line >>> is two. > >> Linksys is being very conservative. Three phones will probably >> work fine, particularly if they are modern phones with electronic > >> ringers. > > I agree with John. Most tweedle-deedle phones draw 0.1-0.3 REN's; > not the 1.0 of a real phone such as a WECO 2500 set. Do all the phones have to ring? I have disconnected (not just silenced) the ringers in several of my phones to ensure reliable ringing and the remaining ones still make a significnant racket heard all thorough the house. Wes Leatherock email@example.com
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 Bill Horne. 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 moderated by Bill Horne.
43 Deerfield Road
Sharon MA 02067-2301
bill at horne dot net
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: http://telecom-digest.org Copyright (C) 2013 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.