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So am I understanding this correct, it is now if you go over 3GB with the unlimited plan you will be throttled?? Regardless if that is in the top 5% or not?

There's a thread about it attached to the story here https://forums.macrumors.com/threads/1332276/

That's not what this thread is referring to, though. It's going to get confusing if people are talking about both in this thread...
 
Either the carriers were not ready for such rapid advancement in technology or someone is just trying to fit more people onto the towers using any means necessary.

It's actually really interesting on how the value of virtual memory has changed. Back in '07-10 $30 got you unlimited mobile internet with no throttling. Sure the speed was not as fast as it is today, but you could use as much as you wanted. Now that network speeds have gotten faster the whole 'all out data use' is turning around. 10GB of mobile data in '07-'10 was valued at $30. Today that same 10GB would be valued at $100. Practically breaks Moore's law.
 
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Not really. If that were the case then how do you explain this not occurring on T-Mobile? [/quote]

Show me conclusive evidence that this isn't happening on T-Mobile. No one has exhaustively tested this. And it doesn't help that T-Mobile doesn't sell the iPhone in the US.

Also you mean to tell me that talking on the phone would take up about 99% of a 2-2.5Mbps upload?! That's a bit far fetched.

Actually, it's quite far-fetched that anyone would consistently hit 2-2.5Mbps. *I* have yet to do it, on or off a call. There are too many inconsistencies in the network to guarantee it'll happen, all the time.



ACTUALLY this was not occurring more than a year ago.

The links I've listed disagree with you.

Look, you're welcome to think that AT&T has this super-secret plan to degrade its network performance for everyone, but ONLY when you're on a voice call, which completely negates their heavily-publicized 3G strongpoint in. What I'm saying is, this behavior:

1. Isn't consistent, because you have users showing they're not being "throttled" all of the time, and
2. This has been shown to occur, equally erratically, before AT&T was throttling anyone.

What you are seeing is a combination of network variances, and hardware limitations. NOT a concertsd effort by AT&T to throttle all users for... who knows what reason?
 
I tried this just now and had the same results(about 5meg down vs 0.5meg down on calls), slow speed on calls. I actually noticed this mid-late last year and posted a question about it on apples forum. I thought it was just limited to my wife and myself iphones. I didnt realize it was much larger than an iphone problem.

You should have seen some of the crazy answers people gave on apples forum.


Hopefully this issue can be addressed. I don't know if done on purpose or not but it seems fishy to me.
 
I don't know if done on purpose or not but it seems fishy to me.

I suppose anything's possible, but it's easier for me to believe it's an unavoidable limitation or an effort to preserve call quality than something nefarious. I doubt poor call quality and quick e-mail is the desired user experience.
 
I suppose anything's possible, but it's easier for me to believe it's an unavoidable limitation or an effort to preserve call quality than something nefarious. I doubt poor call quality and quick e-mail is the desired user experience.

I found the page on the apple forum from last year. You have to excuse how I was putting the blame on the iphone :)

https://discussions.apple.com/thread/3348340?tstart=0

As I was saying in that topic, speeds where fine earlier that year. I had a 3GS last year. I bought an Infuse when it came out and ran plenty of speed test while on calls to test that HSPA speed I heard so much about. All test where consistant on and off. I later took the Infuse back and got an Iphone 4. I ran speed test then to compare with the Infuse. All speed test where consistant on and off calls.

Later I begin to notice a difference when surfing and talking on my phone. I then ran some speed test to see what was going on. Thats when I asked about it on apples forum.

I just feel they should find better ways to ease stress on their network. At least give the customer a more usable speed. I can't even email a picture while on a call without waiting like 5mins+
 
No it isn't hardware. Tested it with a pentaband Galaxy Nexus. On T-Mobile I got great speeds while on call, while on AT&T it was great speeds only when not on call (when on call it was throttled down).

.


So how does that prove it is not hardware? Do you know what you are talking about?

Your test between T-Mo and AT&T are not conclusive. You must work for the government, if not you need to apply!
 
photo 2.PNGphoto 1.PNG

So here you can see my speeds while not on a call and while on a call. Very much reduced. It was not always like this. My throttle restrictions ended today so these screenshots are acqurate and applicable to the thread.
 
Before I fired AT&T I had already gotten in the habit of forcing my iPhone into Edge mode prior to making a conference call just to limit the frequency of call dropping. As such, I only ever experienced slow speeds while surfing and talking at same time.
 
So how does that prove it is not hardware? Do you know what you are talking about?

Your test between T-Mo and AT&T are not conclusive. You must work for the government, if not you need to apply!

Well it proves it's not the phone not limiting the connection but something on AT&T's side - whether it's because they are using inferior hardware (as compared to T-Mobile) or it's intentional.
 
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So here you can see my speeds while not on a call and while on a call. Very much reduced. It was not always like this. My throttle restrictions ended today so these screenshots are acqurate and applicable to the thread.

Yep, it seems like it started late last year. At least thats when I noticed it.

I'm glad to see this coming to light. I knew I wasn't alone or crazy.
 
Reviving old thread here...

So I was trying to use data while on a call and it was really slow. Did some tests and it was consistently slower. Googled and found this thread.

I think this is pretty crazy. It was not like this 10mo ago. There was zero impact to data speed while on voice. Now it is almost not useable.

I wonder if this throttling is documented by AT&T anywhere? Simultaneous voice/data was a big reason I kept AT&T and did not go to Verizon. I wonder if this could be grounds to get out of contract early without etf?
 
Just tried, an yup it sure looks like it. The one that was 8mb + was on LTE, the 2 speed test in the middle were while on a phone call, and the last one at 6mb + was right after I hung up while still on HSPA+.
 

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My results are similar.

I think the worst part about it is that while on AT&T if you make a call you get dropped down to "4G" from LTE... But "4G" while on a call is really only operating at Edge speeds. So it is VERY misleading for AT&T to say that the HSPA+ network is the fall back when on voice call.
 
It is definitely an AT&T issue - if you google it there were a few bloggers/news sites that did tests with iPhones as well as android phones on AT&T and t-mo. It impacted all devices on AT&T.

And like I said: my iPhone 4S less then a year ago got nealy full speed while on voice call. Now it does not. Hardware did not change.
 
One could talk and surf with excellent speeds on T-Mobile. I can see AT&T throttling calls for lack of spectrum or some stupid reason like that.

T-Mobile needs to hurry up and build out that new 3G network.
 
My results are similar.

I think the worst part about it is that while on AT&T if you make a call you get dropped down to "4G" from LTE... But "4G" while on a call is really only operating at Edge speeds. So it is VERY misleading for AT&T to say that the HSPA+ network is the fall back when on voice call.

Does AT&T claim HSPA+ is the fallback for voice?
 
Yes. I asked if the phone would do voice over LTE and they said no it drops to hpsa (which is true, it's just trottled to be unusable).

I know att has some down falls (they all have their minuses), but one of the few advantages they had vs sprint / Verizon was the simultaneous voice/data. Now even that is questionable.

I will likely leave att for the next iPhone, if not sooner...
 
iPhone 4 doesn't throttle on a call like this... Only 4S and 5 do... Something to do with the chip.
 
when I was on ATT iPhone 4 this happened too. Now that Im on verizon iPhone 5 its non-existent because well... I can't get data on calls lol not like I need it I'm barely on the phone
 
This happens to me as well. I'd say I often surf while on the phone and I haven't noticed a really big slow down but testing proves there is a difference when on a call and off.

Here's a theory though. How many of you that experience this on grandfathered unlimited plans? My friend has mobile share and his 4S got MUCH faster speeds than my 4S did. This doesn't happen on my iPhone 5 though. The highest I ever saw on my 4S was about 1.5 down. Now I get 7.5+. (Tower is literally down the street)

Is this happening only to specific customers?
 
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