Dear Joseph, Basically, you should get AT&T from Airport for your data needs if your phone doesn't support T-mobile 3G network like most phones.
For phone needs, both AT&T and T-mobile support GSM, so all suggestions mentioned above are ok. Best regards, Alan Sent on the road > Date: Sun, 17 Jun 2012 16:14:44 +0800 > From: Joseph Fox <[email protected]> > To: "Wikimania general list \(open subscription\)" > <[email protected]> > Subject: Re: [Wikimania-l] Recommendations for communication? > Message-ID: <[email protected]> > Content-Type: text/plain; charset=us-ascii > > Also, that's all Greek to me, frankly. > > Joe > > On 17 Jun 2012, at 16:10, Alan C Y Lai (Wikimedia) wrote: > >> For most people with Eurasian versions of smartphones, you only choice for >> full 3G is using AT&T because of the frequency issue. Only AT&T uses the >> same frequencies at 1800MHz and 2100MHz spectra for WCDMA. The reason why >> many can't attain 3G speed on T-mobile USA is that they use 1700MHz and >> 1900MHz frequencies for WCDMA which is not supported by phones outside US. >> Hence your iPhone would only see 2100MHz for GSM and attain EDGE speed at >> maximum. >> >> Luckily I got a T-Mobile USA version of Nexus S, so I can be different and >> use USD3 a day unlimited phone + data at HSPA+ speeds for the first 200MB. >> >> In response to the following email: >> >> http://lists.wikimedia.org/pipermail/wikimania-l/attachments/20120617/056a4b4a/attachment.html >> >> Best regards, >> Alan Lai >> Sent on the road >> _______________________________________________ >> Wikimania-l mailing list >> [email protected] >> https://lists.wikimedia.org/mailman/listinfo/wikimania-l > > > > > ------------------------------ >
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