comp.dcom.telecom Google Group

Telecommunications digest. (Moderated)

Re: Do rate centers cross state lines? [telecom] Thanks to everyone for the great information. The NPA/NXX data from ANI is being used to send service requests to sub groups of dispatchers. The dispatchers then send a trouble ticket to the tech who covers the customers specific area. They are using ANI to route calls to different dispatching groups.

PA-PUC Announces 272 as Overlay to 570 Area Code [telecom] "PA-PUC Approves Overlay to 570 Area Code": Today, Friday 30-July-2010, the PA-PUC is now reporting that 272 is indeed going to be the overlay relief area code for the existing 570 area code. [link] Radio/TV/Newspaper/etc. media/press/news websites are also now reporting

Re: Do rate centers cross state lines? [telecom] As others answered, rate centers certainly cross county boundaries and are NOT correlated with municipalities, postal names, nor zip codes. As to assigning a worker based on a caller's NPA/NXX, keep in mind that callers for service work often are not calling from the location where service is desired. First, many people use their cellphone

Re: Do rate centers cross state lines? [telecom] On Thu, 29 Jul 2010 16:09:16 -0500 (CDT), jsw wrote: The little town I lived in (419-483) happens to be divided in half by a county line, and there are 2 other counties North and South, so the physical exchange straddles FOUR counties. [link]

Re: The Web Means the End of Forgetting [telecom] Ask the Experts Paul Ohm, a law professor at the University of Colorado, and Michael Fertik, founder of ReputationDefender, answer reader questions about Internet privacy. [link] [link]

Re: Black Hat news: Android app sends data to China [telecom] <[link] our-data-was-downloaded-by-mil lions/> <[link]> I'm not sure exactly what you're asking. The site they cited, imnet.us, is definitely in China, not the USA, per a whois.

Re: Do rate centers cross state lines? [telecom] In the Omaha area, the rate center spans two counties, Douglas and Sarpy, and if you count one little burg on the very edge, yes, part of Washington County as well. Two of the major COs here are on Harrison Street, the county line, and are only a few feet into Sarpy County. The NPA/NXX boundaries extend well into both counties.

Avoiding a Large Phone Bill When Traveling [telecom] Avoiding a Large Phone Bill When Traveling By DAVID A. KELLY The New York Times July 27, 2010 UBIQUITOUS connectivity has its downside, especially when it comes to the price of using your cellphone abroad. The proliferation of smartphones and the increased use of data have made it easier than ever to rack up huge communications bills while traveling overseas,

Re: Apple: iPut a rubber band on it [telecom] In the case of the antenna, reciprocity holds. In the case of the electronics, it doesn't. Once you have a model created in an anechoic chamber, you can derive the response from any signal emission pattern you want mathematically. That's why we have math. --scott

Re: Is Broadcast TV about to be killed? [Telecom] Yes, he has a piece of paper from the government called a station license, which is a binding contract. The problem is that before Reagan, the rights and responsibilities were all enumerated in part 73 and everybody knew what they were, but now most of them seem to be gone and the notion that a station is actually supposed

Re: Overlay acceptance [telecom] This is indeed the normal way to do things in a hotel. The Austrians even went one step further: When the front desk's number is 05212 1234, room 123 could be 05212 1234 123. Don't ask me how that is implemented technically. Greetings Marc

Re: [TELECOM] Do rate centers cross state lines? Excluding portability, do unique NPA/NXX combinations cross state or county boundaries? Rate centers certainly cross county lines. My rate center Trumansburg NY (see prefix 607-387) covers parts of three different counties. There certainly used to be rural places where a telco in one state picked up a few customers in another state, but I don't know if they still do that. Just to deal with the regulators it'd be a lot easier

Black Hat news: Android app sends data to China [telecom] " A questionable Android mobile wallpaper app that collects your " personal data and sends it to a mysterious site in China, has " been downloaded millions of times, according to data unearthed " by mobile security firm Lookout. " " That means that apps that seem good but are really stealing " your personal information are a big risk at a time when mobile

In iPhone, adult industry sees pocket porn market In iPhone, adult industry sees pocket porn market By JOEL SCHECTMAN Associated Press Writer Jul 29, 6:43 AM EDT NEW YORK (AP) -- It's a maxim of technology: Invent the newest gadget and the porn industry will find a way to cash in. So when Apple Inc. launched the iPhone 4 and its FaceTime videoconference feature, it didn't take long for adult-entertainment

Re: [TELECOM] Do rate centers cross state lines? Excluding portability, do unique NPA/NXX combinations cross state or county boundaries? As a general rule, no. Rate centers (actually exchange areas, the polygons corresponding to a rate center point) are state-regulated constructs. There are some semi-exceptions, "localities" where a border area is served across the state line, but most of these are treated as two rate centers nowadays, even if they have the same

Re: [TELECOM] Do rate centers cross state lines? Excluding portability, do unique NPA/NXX combinations cross state or county boundaries? I'm not sure if this helps but I seem to remember that in some rural border areas between Massachusetts and Rhode Island there were Rhode Island houses being assigned Massachusetts area codes and numbers due to their distance from Rhode Island phone exchanges. You might need to contact the public service people who service those

Re: [TELECOM] Do rate centers cross state lines? Excluding portability, do unique NPA/NXX combinations cross state or county boundaries? Portability still uses the original rate center as far as I know. Same with wireless. The # assigned has a specified ratecenter which is used to compute ld charges for wireline customers. NPA/ratecenter: select npa, ratecenter, count(state) from (select distinct npa, ratecenter, state from npa_nxx_company_ocn) as s

Re: Overlay acceptance [telecom] At least for me, it's a significant difference whether I'm using a landline phone and a mobile, and I am comfortable with the mobile behaving differently than the landline. But I might not be a good example since I converted my landline to ISDN in 1996 and since then lost familiarity with the behavior of an

Re: Overlay acceptance [telecom] I agree that can be very convenient. I have stayed in hotels where the front desk's number was something like 222-333-0. and you could direct dial room 123 as 222-333-123. R's, John

CRTC Approves Manitoba 204/431 Area Code Overlay [telecom] Today, Wednesday 28-July-2010, the Canadian Radio-Television and Telecommunications Commission (CRTC) approved the future overlay of Manitoba's 204 Area Code with the new 431 Area Code. The Canadian telcos, through the SAIC-CNA (Canadian Numbering Administration) has been preparing for relief for Manitoba's 204,

Motorola Droid X: Thoroughly Reviewed [telecom] Motorola Droid X: Thoroughly Reviewed by Brian Klug & Anand Lal Shimpi on 7/20/2010 4:27:00 PM You have to hand it to Motorola; as little as a year ago their future looked bleak. Android was still in its infancy and lacking polish, mainstream devices running it were few, and there weren't public or

Citi Discovers Security Flaw in iPhone Application [telecom] Citi Discovers Security Flaw in iPhone Application By NICK BILTON July 26, 2010, 4:38 pm Citi The Citigroup iPhone application can be used for mobile banking. After Citigroup on Monday discovered a potential security flaw in the Apple iPhone app that its customers use to access its Web site, the bank urged customers to upgrade to a newer version of the software,

[TELECOM] Do rate centers cross state lines? Excluding portability, do unique NPA/NXX combinations cross state or county boundaries? Do rate centers cross state lines? Excluding portability, do wired (not wireless) unique NPA/NXX combinations cross state or county boundaries? Why? I'm working on a couple of databases used to send the right tech to the right location based on the callers NPA/NXX and zipcode, but if the NPA/NXX combo is used in

Re: Overlay acceptance [telecom] Although domestic dialing in the U.S. and Canada is a fixed-number system, international dialing is not. So, since the inception of direct international dialing use of the "#" eliminates the 5-second ambiguity period.

Re: WPA2 vulnerability found [telecom] Use a "good" WPA2 key, and change it from time to time. Greetings Marc

Re: Overlay acceptance [telecom] There are exeptions, however, for numbers which are likely to get a high number of calls. For example, the new Hotline of 1und1, one of the largest ISPs in Gemany, is located in the Area Code of Karlsruhe, and has only four digits, while other newly assigned numbers in Karlsruhe have seven or eight digits.

Re: Overlay acceptance [telecom] It's still a horror scenario which I am glad that [we] were able to avoid. Grüße Marc

Re: Paul Rosen, 88, helped develop the high-speed modem [telecom] While we're on the subject of modem history, the following article in the Western Union Technical Review describes FSK technology of the early 1960s, including technical details on transmission characteristics. How much of that stuff do we take for granted wiith today's technology running at much higher speeds? [click next/

Re: iPhone jailbreaking (and all cell phone unlocking) made legal [telecom] This has nothing whatsoever to do with the FCC.* It's actually from the copyright office, via the Librarian of Congress since the copyright office is part of the LoC. There is a part of the copyright law against breaking software access controls which has a bunch of exceptions, with the details of the

Re: Overlay acceptance [telecom] People who use mobile phones would probably disagree with you. R's, John

Electronic payments for commuter rail parking in Boston [telecom] MBTA rolls out new parking payment system that allows customers to dump bill-cramming Posted July 23, 2010 11:17 AM By Megan McKee, Town Correspondent MBTA general manager Richard Davey was at the West Natick commuter rail station July 22 to unveil a new parking payment system that will allow commuter rail parkers to pay for their spots via smartphones

Re: WPA2 vulnerability found [telecom] Here's another one -- Consider a microwave cavity with 5 rigid sides whose 6th side is a metalized membrane. Cavities resonate at a given frequency, and when sound impinges the membrane the cavity's resonant frequency is modulated. If the cavity is a part of a transmitter which is powered by DC rectified from a local AM radio station's signal

Re: Overlay acceptance [telecom] In a message dated 7/26/2010 6:32:50 PM Central Daylight Time, One example mentioned in a Bell System publication--probably the Bell Labs Record and said to be the first attempt to do this--was when the Wisconsin National Guard went to summer camp in, I believe, Washington state. All the soldiers headed for the phones in the evening to call

Re: The plan: westward the Net [telecom] In article , Because they are sufficiently thickly populated that they can pay their own way through their phone/broadband bills. Same as with subsidized phone lines for rural areas for many decades. Thanks -- David

Re: Apple: iPut a rubber band on it [telecom] .......... Hang on, if the "reception" problems are in fact the phone receiving signals then there may well be a direct correlation to the transmission capabilities of the device, but there may not. In any case, in real-life usage the source/sink that the phone connects to is (usually) a long way away from the device and since signal reflections

Re: Paul Rosen, 88, helped develop the high-speed modem [telecom] It's probably worth mentioning that the "sequential decoder" shown in the Washington Post, of which the original photo is hanging on the wall in the room in which I'm writing this, was a major contribution that my dad, along with Claude Shannon (left) and my dad's long time colleague and friend Jack Wozencraft, (right) made to the modern

Re: Paul Rosen, 88, helped develop the high-speed modem [telecom] [link]... The above reference is extremely interesting* and explains what he did. Quoting a part of it below: "I had made lots of tests on telephone lines. These were pretty lousy lines. Some of them ran on posts set in the ground used to keep out

Re: WPA2 vulnerability found [telecom] .......... As secure as any other HTTPS connection on any other medium.

Re: WPA2 vulnerability found [telecom] This is true. But what's a person going to do? Given enough time to crack, no wireless is totally secure. For that matter, no EMF is totally secure. I once read that intelligence agencies can intercept room sounds by bouncing lasers off the windows, since windows bend ever so slightly to sound waves.

Re: Overlay acceptance [telecom] Of course. But that's still significantly different from what we're used to ("dial - ring"). Greetings Marc

Re: Overlay acceptance [telecom] .......... By "experts" I mean the people who engineer and/or research things and actually know about the subject, not the bean-counters, political players or PR hacks that decide too many things these days. The "experts" I refer to try to do things despite the efforts of those I just mentioned.

Re: Overlay acceptance [telecom] The federal network agency[1] now imposes a minimum length for newly assigned numbers, so that even connections in a tiny mountain village with 50 houses get six digit numbers in the four digit area code. Assigned numbers, however, stay that way[2] until the owner[3] cancels the contract or moves away[4].

Re: Overlay acceptance [telecom] In the case of a split, such as when southern New Jersey created 856 out of 609, the people in 609 kept the same phone number they always had. The people in the 856 section had the new area code, but the individual phone number didn't change. In the context of this discussion, note that splits also have an

iPhone jailbreaking (and all cell phone unlocking) made legal [telecom] The FCC has decided to allow (with some restrictions - see whole article) the Smartphones to be legally "jailbroken" - unlocking of a Smartphone to be operated on another carriers system and in the case of the Apple iPhone, be able to run apps (applications) which Apple has not approved. The complete article is found at:

Re: Overlay acceptance [telecom] Sorry, I should have said a switch can try multiple routes if the preferred route isn't available, the 4XB had some thing that shuffled punchcards to try routes, and had some ability to customize by time of day. I can't dig it up now, but I've read stuff about e.g. routing calls in the morning from Chicago to New York via Denver and Dallas

Re: Overlay acceptance [telecom] Usually the # key will end the timing.

Re: Paul Rosen, 88, helped develop the high-speed modem [telecom] Lisa or Jeff schrieb: The patent (2,850,573) covers the actual circuit design and not just the modulation theory of a modulator and demodulator able to reach bit rates close to the carrier frequency. Some parameters are variable, but with the example configuration in the patent, the circuits reaches 1600 bps

EFF Wins New Legal Protections for Video Artists, Cell Phone Jailbreakers, and Unlockers EFF Wins New Legal Protections for Video Artists, Cell Phone Jailbreakers, and Unlockers Rulemaking Fixes Critical DMCA Wrongs July 26, 2010 San Francisco - The Electronic Frontier Foundation (EFF) won three critical exemptions to the Digital Millennium Copyright Act (DMCA) anticircumvention provisions today, carving out new legal protections

Re: WPA2 vulnerability found [telecom] >[link] 2010/072610wireless1.html >***** Moderator's Note ***** >This kind of security "exploit" is tailor-made for the ever-shorter >news cycle: a flash in the electronic pan perfectly timed to grab the >(admittedly minute) imaginations of our nations' "reporters", and just

Re: Apple: iPut a rubber band on it [telecom] Yes, but being anechoic at cellphone frequencies isn't particularly difficult to expensive to arrange. It's much easier than at lower frequencies. You get reflections off the walls and off of objects inside the room, which makes it very difficult to measure actual signal strengths because you are forced to separate the original pulse from the reflections. Easier to

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