Graves On SOHO Technology

My wife’s family is from Thorndale, TX. Bert, her oldest brother, lives at the family’s homestead. In his late 60’s Bert recently got his first cell phone. It’s as pretty basic flip-phone. It’s exactly what he needs. However, he’s having trouble receiving calls when he’s in the house.

The rear portion of the old house has a steel roof. That’s also where Bert’s bedroom is located. As far as I know the cellular signal is ok in the yard, and even in the front portion of the house. But if Bert is in the rear of the house his cell phone loses it’s connection to the nearest tower.

Bert’s cell service is a prepaid account. I don’t know what company provides the service, but Googling for the phone number I see it belongs to Cingular. That suggests that the service provider is using AT&T’s network. This tells us what kind of network it uses (GSM) and the frequencies involved.

A week ago I tweeted an inquiry about cellular signal boosters. Rakesh Agrawal replied, telling of a good experience with Wilson Electronics Wi-Ex signal boosters. Apparently Rakesh’s company, Snapstream, had cellular connectivity issues in their former location. He described that building as a metal box.

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Some time ago I made it clear that I actually prefer a headset with a boom mounted microphone. The Etymotic ETY.COM is an example of such a device, as is the now defunct Plantronics .Audio 615m. It’s also true that the current trend in Bluetooth wireless headsets leans towards designs that are much less conspicuous.

Some months back I became aware of Zelher, a small company that offer a pair of what appeared to be very interesting Bluetooth headsets. I emailed the company inquiring about the products, specifically whether they supported HDVoice. Their response indicated that the company was going to offer a stereo headset for music use later in the year, but said nothing about support for wideband voice in the existing products.

I looked on Amazon to see that the Zelher P20 listed at $99, but was typically offered for around $60. At that price I wasn’t about to buy one just to satisfy my curiosity. A few weeks later I found the P20 offered by a daily deals web site for just $40. That was a bit more tempting.

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This past week I spent a few days in Milwaukee WI. If Boston is Bean-town then Milwaukee is quite likely Beer-town. I actually drove past the Pabst Brewery. I didn’t know that they still made Pabst, or that anyone would actually drink the stuff. I took it to be like Lone Star in Texas, just something to offer the tourists.

Initial impression of the suds aside, I saw something in Milwaukee that gave me pause. I saw the signs, and they were worrying.

To be more specific I saw a few of the newer T-Mobile billboards. I still mostly like T-Mobile. And heck, Carly-of-the-patterned-magenta-dresses is certainly easy on the eyes, so billboards should be a good thing…but these were cause for concern.

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Sunday’s episode of On The Media from WNYC had considerable coverage of the evolving News Of The World story. In addition they had a full segment on the state of voicemail security in the US.

In the segment on voicemail security Executive Producer John Keefe tried one of the common “hacks” on his own cellular service. Using an online service he spoofed his caller ID such that the cellular carrier thought he was calling from his own cell phone number from his own handset, a circumstance where they may not require the use of the voicemail PIN code.

They go on to give an overview of the state of basic voice mail security with some of the major US carriers. Apparently only AT&T and Sprint by default allow caller ID based bypass of the requirement for use of a PIN code.

It’s good to see someone looking beyond the face of the scandal to consider how the cellular carriers blatant disregard for even the simplest matters of security allowed the exploits occur.

The recent blow-up in the UK over the tabloid media accessing people’s cellular voicemail is certainly interesting. Endless media outlets are reporting the crime as “hacking” cell phones or cell phone voice mail. Here are just a few examples:

• PC World: News of the World Cell Phone Hack: How it’s Done
• New York Times: British Tabloid Hacked Missing Girl’s Voice Mail, Lawyer Says
• MSNBC: Police talk with more parents about cellphone hacks

I find that the use of the term “hacking” in this context rests uneasily with me. In my mind hacking implies that there’s an appreciable skill involved. The most basic of the techniques described I consider to be trivially simple. It requires no particular skill at all, just a little devilishness.

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Public Knowledge President Gigi B. Sohn testifies on the AT&T-T-Mobile merger before the Senate Antitrust Subcommittee on May 11, 2011. I caught a portion of the testimony via the web stream. You can find that C-SPAN coverage here.

I found that AT&T’s arguments for the merger were hollow at best, and deceptive at worst. I hope that the Congress will act via the DOJ where it seems unlikely that the FCC will see fit.

For more information, check out http://www.publicknowledge.org/tell-president-obama-stop-unthinkable-att-t-mo….