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TetherMe, available in Cydia.
AT&T can easily spot customers that are using unauthorized tethering apps

In March, AT&T began cracking down on customers it believed were jailbreaking their iPhones and using "unauthorized" apps to tether data for no extra fee. Text messages were sent out to suspected customers with an ultimatum: Stop tethering, or we'll automatically enroll you in our $45 DataPro plan.  

The folks over at Android Police point out that jailbroken iPhones are easy to pinpoint when tethered, because many tethering apps use the same technique as the one inherent in iOS. When tethered, the iPhone "sends traffic through an alternate APN (AT&T access point/router) for the express purpose of identifying the traffic as tethered data. This makes it extremely easy for AT&T to identify whether or not an iOS device is utilizing tethering, and just how much of their data is consumed via tethering."

The customers AT&T is likely targeting most are those with the grandfathered unlimited data plans. They can tether their hearts out, without worrying about going over their allotted data cap.

IPhoneDownloadBlog has a list of iPhone tethering apps. MyWi, the most popular one, uses the same APN as the iPhone's standard tethering system, so it is not recommended if you want to go undetected. Two other alternatives are PdaNet -- which offers a "hide" function -- and TetherMe.

However, some users in the comments section of iPhoneDownloadBlog are saying that even with the updated versions of these tethering apps with hiding functionality enabled can’t escape AT&T’s wrath.

“I used the new PDANET since the day it was released a few weeks ago,” wrote one commenter. “Shortly after and consistent with 4.3 upgrade I received an email from ATT.”

So perhaps no one is safe anymore when it comes to unauthorized tethering on the iPhone.



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RE: !#@! ATT
By Suntan on 5/9/2011 1:53:46 PM , Rating: 2
quote:
Captitalism is fun isn't it? They can do whatever they like as long as it's in your contract. Their system, their rules.


They can do whatever they like as long as their customers keep signing new contracts you mean…

Yeah, no one here (myself included) likes these crackdowns, but the reality is that the majority of their customers have no idea what tethering entails. Or at least, they have no idea what “free” tethering entails. As such, the carriers can “crack down” without worrying about alienating a large portion of their userbase.

Anyway, by all anecdotal reports, Sprint will be the one carrier that will continue to look the other way about tethering. Give them your business when your current contract runs out if it really bugs you.

-Suntan


"We are going to continue to work with them to make sure they understand the reality of the Internet.  A lot of these people don't have Ph.Ds, and they don't have a degree in computer science." -- RIM co-CEO Michael Lazaridis














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