29 Years of the Digest ... founded August 21, 1981

Add this Digest to your personal   or  

The Telecom Digest for June 04, 2011
Volume 30 : Issue 141 : "text" Format
Messages in this Issue:
Re: DSL Reports: AT&T Caps Have Arrived(David Clayton)
Re: Need some help(ABLE1)
Re: Pre-paid SIM cards in the US(Paul Robinson)
Re: Busy trunks--subscriber behavior(Paul Robinson)

====== 29 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 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: Fri, 03 Jun 2011 08:31:12 +1000 From: David Clayton <dcstarbox-usenet@yahoo.com.au> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: DSL Reports: AT&T Caps Have Arrived Message-ID: <pan.2011.> On Thu, 02 Jun 2011 09:58:34 -0400, tlvp wrote: ......... > That's where European operators treat their clients much nicer -- inbound > calls and inbound messages arrive at no charge to the recipient (in the > case of the Polish operators Orange and Play, in fact, even after your > starter SIM's stored value has gone to zero, you can receive for at least > a year from your SIM's date of first use). > Same as Australia, I used to have a very cheap pre-paid SIM that I rarely made outgoing calls on and it basically cost me $30 a year for a number that I could receive incoming calls. -- Regards, David. David Clayton Melbourne, Victoria, Australia. Knowledge is a measure of how many answers you have, intelligence is a measure of how many questions you have.
Date: Thu, 2 Jun 2011 21:06:38 -0400 From: "ABLE1" <royboynospam@somewhere.net> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: Need some help Message-ID: <BsWFp.26567$rv2.4195@en-nntp-12.dc1.easynews.com> >>What I can't find is this at 25v 70v or 100volt. > > Probably all of the above. The output transformer has multiple taps. > It's 100 watts at 25v on the 25v tap, 100 watts at 70v on the 70V tap, > 100 watts into 8 ohms on the 8 ohm tap. > > Are the transformer taps labelled at all? > What is the amplifier driving? Measure the load impedance with a bridge, > or open up one of the speakers in the chain and see what's inside it. > >>I hate shooting in the dark. With the amount of dark I have right now any >>glimmer of light would be a blessing. > > What is the amp driving? Which taps on the transformer are being used? > --scott That is the problem, The terminals are not labeled. Wish they were. Was hoping to find info on the speaker numbers. >> Connected to multiple speakers that are labeled D31201-0500 VRC8 with >> a multi-tap Txfmr L50411-0010. I have to assume that it is 70.7volts. It seems the most logical. Have not been given the green light as yet to replace the amp. I plan on installing a Bogen 100 Watt Amp, it has taps for 25 and 70 volts. I could play it save and connect to 25volts and test and if output is surprisingly low the jump up to 70volts. Shouldn't hurt any thing at 25volts. Thanks for any input. Les
Date: Thu, 2 Jun 2011 18:54:58 -0700 (PDT) From: Paul Robinson <paul@paul-robinson.us> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: Pre-paid SIM cards in the US Message-ID: <36961823-7e1b-41b5-8701-84fec43655df@w36g2000vbi.googlegroups.com> On May 19, 1:59 pm, Dave Garland <dave.garl...@wizinfo.com> wrote: > On 5/18/2011 8:28 AM, John Levine wrote: > > > T-Mo and AT&T will both sell you a SIM.  I bought an AT&T SIM a > > couple of weeks ago, I think for $25 plus the airtime. > > With T-Mo anyhow, for $20 or so you can get both the SIM and a cheap > phone at a mass-market vendor like WalMart, Target or K-Mart.  That's > where I get mine (I lose/break phones). While I haven't tried using > the SIM in the phone branded by another vendor, I have switched SIMs > between various T-Mo-locked phones without any problem, and ISTM that > it ought to work in any unlocked phone. I once spoke to a clerk at a T-Mobile store, because I wanted to find out about replacing the lost back on the phone I had or what it would take to replace the phone. He told me that you can use any T-Mobile sim in any T-Mobile phone, so in my case, where my phone is on a regular account, I can pull the sim out of it, and put it in any T- Mobile phone, including a T-Mobile prepaid phone, and the new phone will be recognized by T-Mobile's network as the phone that sim card is assigned to. So if his phone will work on T-Mobile, buying a pre-paid phone, getting it set up, then moving the sim card to his old phone should allow him to use it on the pre-paid number in the U.S. When he goes back to Europe, switching the sim card back should put him back on his old number. At least that's how I understand it.
Date: Thu, 2 Jun 2011 19:03:43 -0700 (PDT) From: Paul Robinson <paul@paul-robinson.us> To: telecomdigestmoderator.remove-this@and-this-too.telecom-digest.org. Subject: Re: Busy trunks--subscriber behavior Message-ID: <84407c1a-2558-4257-b85a-8f298db1c0ad@c26g2000vbq.googlegroups.com> On May 3, 12:29 pm, Lisa or Jeff <hanco...@bbs.cpcn.com> wrote: > These days it is very rare to run out of trunks or switching > capacity.  However, during emergency situations, such as after heavy > storms or other natural disasters, or other major emergencies, there > may be a temporary overload on telephone facilities. > > If this happens the switches may get overloaded.  If a caller hits a > busy signal (of any type), they'll try again very quickly.  These > unsuccessful call attempts represent a load on a switch. > > Years ago a flood of call requests to an ESS might cause the entire > switch to fail; I'm not sure if today's switches have the same > limitation. A telephone switch isn't a mechanical device any more. Look at what your monitor is connected to and you'll see what a telephone switch is now. That's right, it's a computer, albeit a single-purpose one and a lot bigger. Note that nowadays you can run a PBX for a small to medium-sized office (and all a PBX is is a telephone switch that the customer owns instead of the telephone company) using Asterix on a dedicated PC. The hardware reliability for phone company switches might be higher as the components aren't the least expensive ones, but even todays PCs are fairly high-reliability machines. The software running the switch, on the other hand, is much more reliable, it's equivalent to BSD or Linux uptime levels, e.g. 99.97% reliability.
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.
Contact information:Bill Horne
Telecom Digest
43 Deerfield Road
Sharon MA 02067-2301
bill at horne dot net
Subscribe:telecom-request@telecom-digest.org?body=subscribe telecom
Unsubscribe:telecom-request@telecom-digest.org?body=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: http://telecom-digest.org

Copyright (C) 2009 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

End of The Telecom Digest (4 messages)

Return to Archives ** Older Issues