also worth reading AT&T and iPhone

[Dave Farber <dave () farber net>]

Begin forwarded message:

> From: "David P. Reed" <dpreed () reed com>
> Date: December 13, 2009 1:37:07 PM EST
> To: dave () farber net
> Cc: ip <ip () v2 listbox com>
> Subject: Re: [IP] worth reading  AT&T and iPhone

> I have been measuring ATT 3G network performance for several months,  
> as have a group of non ATT network experts.  It's hard to do that  
> with iPhones, but easy to do that with the ATT network dongle and a  
> laptop, with tools from standard Internet performance measurement  
> resources (if you have your own network servers, which all of us do).
>
> Measurements of latency on ATT's network in several cities (NOT  
> using an iPhone, but a 3G modem) do not bear out the claim by  
> Randall Stross, the NYT reporter, that it's the iPhone's air  
> interface.
>
> Stross is not a network technology expert, so I wonder where he got  
> the idea that it's the iPhone's air interface that is the problem.    
> Perhaps from ATT PR flacks?  I'd be interested if there were any  
> technological "there" there.  I suspect not. The Occam's Razor  
> explanation is that ATT's backhaul is super-under-provisioned for  
> the demand.  And they are blaming the users, as usual.
>
> Anyway, this link from the fake Steve Jobs site suggests what might  
> actually be happening. :-)
>
> http://www.fakesteve.net/2009/12/a-not-so-brief-chat-with-randall-stephenson-of-att.html
>
>
>
>
> >



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