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Think of it this way, safari on your tethered macbook is going to use the same amount of data as safari on your iPhone. So as long as you are not going over your 5GB soft-cap, AT&T will not check your usage because it would take way to much work for an employee to go through everyones data usage, line by line, for anomalies.

I don't think this is an accurate statement. Safari on your tethered macbook can use flash, java, etc. Safari on iphone can't.
 
+1

the url header gives away enough info to tell your not on an iphone. And that is hardly 'in-depth'

why

I can access mobile version URL's on my PC

and I can access full website URL's on my iPhone

this may have been true for older phones, but not for the iphone


That said, I guess if you had 20gb of Hulu.com traffic that would be extremely suspicious :p

but websites like Youtube shouldn't raise a flag
 
I used 350GB last month overseas and no, AT&T did not charge me anything extra.

And I've been tethering since phones had GPRS.
 
i have verizon turbo speed at my house. fastest internet verizon provides. when i tether with at&t's 3g network i freak out. imagine tethering with tmobiles 2g network, god you load like 2 pages in a whole day. lol.

Can you explain what you mean by "freak out?" Is that a good freak out or a bad freak out?
 
+1

the url header gives away enough info to tell your not on an iphone. And that is hardly 'in-depth'

LOL! :D

The only way to tell is by the source MAC address of the device transmitting the packets crossreferenced with Apple registered Mac prefixes. Why would carriers bother with decoding it in this detail?
Like I said, be sensible and you'll be alright. Go get the Nexus One and tether through PDAnet - AT&T allow it, they just know alot of people with iPhones will want this functionality and are willing to pay for it so of course they'll say it's not allowed.
 
Will AT&T get wise, now that they have a "tethering" service?

Unfortunately, I just can't see paying another $180 over what I am paying already for "Unlimited" data.

The calculation is based on having to pay $30 right now and to tether at a useful cap it would cost $45 a month.

Now back to my point, if I use tethering for ONE time, at a really high usage, I am talking about like 3-5GB in a matter of 3 days or so, will AT&T slap me with this tethering fee, and require me to pay it from here on out?

I wouldn't really care all that much if they switched me to the new data plan, last month I barely used 300MB's (primarily because I connect to wifi at home and at work), so switching to the $25 for 2GB would actually save me $5 a month. But I wouldn't want to pay the additional $20 for tethering every month if I only use it one time.

Any thoughts advice?

I looked into a prepaid mobile broadband service, and even buying a used modem online would put me in the ballpark of $100 just so I could broadcast this event and have a 5GB cap.

I really need to know if anyone's gotten in trouble, or for that matter, recently been charged the tethering fee because AT&T is noticing that you are tethering.

Side question has anyone looked at using this?
http://code.google.com/p/iphone-socks-proxy/

It doesn't require you to jailbreak, but does require you have access to the iPhone SDK, but I am not sure if that alone will allow me put the app on my non-jailbroken 3GS running iOS4. I am in the middle of trying to upgrade to SL, so I can install the latest iPhone SDK to test that out.

Thanks in advance for any advice...
 
LOL! :D

The only way to tell is by the source MAC address of the device transmitting the packets crossreferenced with Apple registered Mac prefixes. Why would carriers bother with decoding it in this detail?
Like I said, be sensible and you'll be alright. Go get the Nexus One and tether through PDAnet - AT&T allow it, they just know alot of people with iPhones will want this functionality and are willing to pay for it so of course they'll say it's not allowed.

If you surfed the Internet from your laptop or desktop while tethering, the user-agent that would be sent in the HTTP header would be a dead giveaway that you were tethering. If they wanted to crack down on people who tether, it would be child's play.

iPhone Safari user-agent:
"Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5"

Desktop/Laptop Safari user-agent:
"Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_8; en-us) AppleWebKit/533.19.4 (KHTML, like Gecko) Version/5.0.3 Safari/533.19.4"
 
I got caught tethering about two months ago. The AT&T police knocked on my door, stormed in and stomped my iphone and laptop into the ground and said if it happened again that next time it would be my head. I recommend not tethering if you value your life.

lol lol lol lol
 
If you surfed the Internet from your laptop or desktop while tethering, the user-agent that would be sent in the HTTP header would be a dead giveaway that you were tethering. If they wanted to crack down on people who tether, it would be child's play.

iPhone Safari user-agent:
"Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5"

Desktop/Laptop Safari user-agent:
"Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_8; en-us) AppleWebKit/533.19.4 (KHTML, like Gecko) Version/5.0.3 Safari/533.19.4"


This is the slightest bit silly. First, all tethered traffic would have to be "web" traffic to be detected. This is probably not going to be the case. People do IM, email and everything else.

Second, everyone would be using the same browser (and you would be assuming you can't "spoof" this very easily. I regularly use Skyfire on my iPhone, and I can make it appear or not as i want as the regular iPhone browser.

Finally, from a firewall and routing standpoint, a HUGE ISP such as AT&T is not going to waste money and resources doing source level application type filtering.
 
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