31 Years of the Digest ... founded August 21, 1981
The Telecom Digest for August 2, 2013
====== 31 years of TELECOM Digest -- Founded August 21, 1981 ======
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Date: Thu, 01 Aug 2013 09:12:53 -0400 From: Telco Guy <Telco@Guy.com> To: email@example.com. Subject: Re: How does third-party DSL work? Message-ID: <51FA5ED5.A63F6F1B@Guy.com> Jim Haynes wrote: > I have telephone service from AT&T, and DSL from Earthlink. > > I don't know where the DSL modem at the far end is, nor whether > it is owned by AT&T or by Earthlink, nor how the DSL modem out > there connects to the Internet. There are AT&T and Earthlink forums on DSLReports.com. Your questions can/will be answered there.
Date: Thu, 01 Aug 2013 16:37:58 +0000 From: nivenh <firstname.lastname@example.org> To: email@example.com. Subject: Uptime and lifetime of #5ESS Message-ID: <firstname.lastname@example.org> replying to Thad Floryan, nivenh wrote: If anyone has a copy of the DMERT (UNIX-RTR) Operating System installation tapes on media (either disk, images, or DAT tape), I am in need of a replacement for my VCDX (Very Compact Digital eXchange). This is the operating system that runs the 5ESS switch (3B20D/3B21D). I am willing to make a decent offer for the media. Please contact n AT mod.net Thanks. -Nivenh -- posted via http://forums.cabling-design.com/telecom/uptime-and-lifetime-of-5ess-telecom-77245-.htm using Cabling-Design's Web, RSS and Social Media Interface to comp.dcom.telecom and other telecom groups
Date: Wed, 31 Jul 2013 23:24:13 -0500 From: Doug McIntyre <email@example.com> To: firstname.lastname@example.org. Subject: Re: How does third-party DSL work? Message-ID: <OtGdnUeqBflwf2TMnZ2dnUVZ_hadnZ2d@giganews.com> Jim Haynes <email@example.com> writes: >It would help if I understood how all this works. DSL modem on copper >pair at my house goes somewhere out in the city to some apparatus but not >direct to the telephone office. I don't know where the DSL modem at >the far end is, nor whether it is owned by AT&T or by Earthlink, nor >how the DSL modem out there connects to the Internet. Typically, (at least how we have it with CenturyLink and the 3rd party ISP I am part of)... Although there are lots of different scenarios, this is probably the most likely. Your line routes out either to the central office DSLAM, or more likely, to the remote terminal box where the remote DSLAM is located. There the line is split off to the DSLAM, and off to the POTS switch (which would be further along the line in a remote terminal). The DSLAM back-hauls over data back to the CO, in CenturyLinks' case, all over ATM, either optical OC3c, or bonded IMA ATM T1s. The ATM packets are switched onto the ATM backbone, and then feed off to the 3rd party ISP on some sort of ATM trunk lines, optical OC3c or potentially DS3s. There the 3rd party ISP terminates the ATM signal back into layer-3 internet with their gear, and puts your packets onto the Internet proper, giving you your IP address, and doing all the IP packet routing. Other telco arrangements would hand off on GigEthernet with a vlan per-customer (not happening for 3rd party ISPs in CenturyLink territory). Or even a 3rd party ISP just resells the ILEC service altogether. So, if the signal is out altogether, your line is disconnected between your prem and the remote DSLAM box (or the remote DSLAM is down). If you train up to remote DSLAM, but you can't authenticate or pass IP packets, then there is a whole backbone stretching from the remote, through the COs of how many ever hops, and back out to the ISP to terminate. Since the CO-to-CO trunks are usually pretty stable, and the 3rd party ISP is probably pretty stable (if they are still around this late in the game), the problem usually involves the environmental box where the remote terminal is, either the feed into the box from the prem, or the back feed out of the box however they handle it.
Date: Tue, 30 Jul 2013 15:44:06 -0700 (PDT) From: Neal McLain <firstname.lastname@example.org> To: email@example.com. Subject: Only Seven Percent of TV Households Rely on Over-the-Air Signals according to CEA Study Message-ID: <firstname.lastname@example.org> FierceCable July 30, 2013 > ARLINGTON, Va.--(BUSINESS WIRE)--New research released today from the > Consumer Electronics Association (CEA) found that just seven percent > of American TV households rely solely on an antenna for their television > programming. The findings of the new study, U.S. Household Television > Usage Update, are consistent with CEA's 2010 research which found eight > percent of TV households reported using an antenna only for television > programming. According to historical CEA research, there has been a > gradual decline in the percentage of TV households using antennas since > 2005. The phone survey of 1,009 U.S. adults is comparable to a 2012 > Nielsen study indicating nine percent of all U.S. TV households are > broadcast TV/over-the-air only, a decrease from 16 percent in 2003. > > "The vast majority of Americans no longer rely on over-the-air TV > signals," said Gary Shapiro, president and CEO, CEA. "Consumers have > moved away in droves from traditional broadcast television thanks to a > surge in programming alternatives available through wired and wireless > broadband connections. This is why Congress had it right when they > authorized the FCC to hold voluntary broadcast spectrum incentive > auctions to reallocate broadcast television spectrum to greater uses, > like wireless broadband. This study provides yet another reason why it > is time for broadcast spectrum to be reallocated, and quickly." Continued: http://tinyurl.com/lq6bkkx And so it is that the "vast majority of Americans" subsidizes the Seven Percent. All in the name of Consumer Protection. Neal McLain
Date: Mon, 29 Jul 2013 23:03:02 -0700 (PDT) From: Neal McLain <email@example.com> To: firstname.lastname@example.org. Subject: TV Repacking: What the Latest TV Study Materials Mean Message-ID: <email@example.com> Posted on July 28, 2013 by FHH Law An engineer takes a look at the latest information dump from the FCC on the TV repacking front. The materials recently released by the Incentive Auction Task Force provide considerably more details than had previously been available about the Commissions move to repack the TV spectrum. Move? Let's stick with that analogy for a moment. Think of the available spectrum as the empty moving van and all the TV Stations (as well as some other spectrum users) as the entire contents of your house that need to be moved. The first chore in moving is to get organized so that everything will fit in the moving van in one trip. In its recent releases, the FCC has put the entire contents of its TV spectrum house out on the driveway. They're now looking, first, at the piles of boxes and furniture and, next, at the empty moving truck. They're scratching their heads trying to figure out what pieces to start with. So, like any good engineer, they wrote some software to help solve the problem. The software determines how many combinations and permutations of all that stuff need to be analyzed before they can start loading the truck. The list of furniture includes: 2,177 U.S. Stations (Full service and Class A); 2,557 Canadian Allotments; 603 Mexican Allotments; 25 Land Mobile Channel preclusions; and 424 other Land Mobile ("T-band") users currently operating in the TV bands. Oh, and don't forget to reserve Channel 37 for the radio astronomy listening channel (E.T.). That's a lot of stuff to pack! Continued: http://tinyurl.com/pnkbutu Neal McLain
Date: Mon, 29 Jul 2013 22:55:37 -0700 (PDT) From: Neal McLain <firstname.lastname@example.org> To: email@example.com. Subject: Ninth Circuit Tosses Fox into the Hopper...For Now Message-ID: <firstname.lastname@example.org> Posted on Fletcher, Heald & Hildreth blog on July 29, 2013 by Kevin Goldberg At first blush, the Ninth Circuit decision allowing Dish to continue to offer its "Hopper" service may not look great for broadcasters, but don't hop to any conclusions just yet. The TV industry has suffered some setbacks on the copyright front in the Aereo litigation in the Second Circuit and, as we have reported, the industry is keeping its fingers crossed, hoping for support from the Ninth Circuit on the Left Coast (in the pending Aereokiller appeal). Bad news. In an unrelated case the Ninth Circuit has issued a decision that doesn't help broadcasters although, much like the Aereo decisions so far, the damage here is by no means catastrophic. The decision involves the "Hopper" from Dish. Continued: http://tinyurl.com/pg6ausl Neal McLain
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