Having trouble making sense of unlocked GSM phones, SIM cards, and unlocking/jailbreaking US phones for travel to Iceland. Please help. [more inside]
posted by ImproviseOrDie on Jul 17, 2012 - 8 answers

roadtrip time. I have an unlocked iphone and need a prepaid sim card. which one should I choose? [more inside]
posted by krautland on May 8, 2012 - 6 answers

Is "GSM [speaker] buzz" a thing of the past? I have an iPhone 4. [more inside]
posted by skwt on Nov 16, 2011 - 15 answers

I am new to an apple developer website. I have register to a apple developer website and paid $99. I downloaded IOS 5 beta for iPad 2 GSM and iTunes Beta. After with all the downloads and installations, When I plug iPad to Itunes beta by wire, It says I have to register the device in apple developer site. I went to the site and tried everything to find a page where I can register the device and couldn't find it. Since I am new, please explain to me how to register my device in simple way thanks
posted by omaralarifi on Jun 12, 2011 - 6 answers

My husband and I are visiting Korea soon. Is the famous WiFi in Korea ubiquitous enough to use his iPhone 4 for web browsing and Skype? We're also renting an SKTelecom cellphone, but we'd like to use the iPhone for data-related tasks and travel apps. Is it just a matter of his iPhone jumping on any Wifi network (without incurring any roaming charges)? We're coming from the US (AT&T), and staying in Jeju and Seoul. [more inside]
posted by yeoja on Apr 10, 2011 - 7 answers

Help me get my hands on a cell phone that will work in Sweden, before I leave! GSM, SIM, micro-SIM, iPhones, oh my. [more inside]
posted by mokudekiru on Dec 28, 2010 - 6 answers

Why (and what) is my iPhone transmitting while switched off? My (Australian bought, legitimately carrier-unlocked, T-Mobile-SIM'd) iPhone 3GS is switched off (hold down top button, swipe red switch on screen) but connected to wall power and sitting on top of a poorly shielded computer speaker. Almost exactly at 5:00am it uttered the characteristic "dit dit de-dit dit de-dit dit de-dit" of a GSM phone chatting to a cell tower. I switched it off ffs, the GSM radio shouldn't be active! What is it sending to the tower and why? [more inside]
posted by m1ndsurfer on Dec 25, 2009 - 12 answers

It's the buzz buzz buzz in the drum of the ear, or, making my amplifier a tinfoil hat to stop GSM noises from my phone. [more inside]
posted by Halle on Sep 23, 2009 - 8 answers

What is the best flat calling rate pan-European GSM SIM card for temporary use? Two people with iPhone 2G (iPhone1,1) quad band unlocked phones will be in Europe for one month. We want voice and SMS only, not GPRS data, and the ability to add credit to either phone by scratch cards... [more inside]
posted by thewalrus on Aug 11, 2009 - 4 answers

Why is my iPhone (3g) suddenly making a new and totally different kind of buzzing into my cheap speakers in additional to the good old GSM buzz I'm used to? Here is the sound. (608k .wav) [more inside]
posted by Space Coyote on Jan 8, 2009 - 2 answers

Electricity and Magnetism geeks - help me! I would like to stop the GSM interference from my iPhone to my speakers with ferrite chokes. I imagine a bit of information would help me get the best ones... [more inside]
posted by twiggy on Aug 11, 2008 - 12 answers

Got a lead on some decent-sounding, not-outrageously-pricey speakers that are shielded from GSM buzz? [more inside]
posted by evariste on Apr 10, 2008 - 10 answers

How can I make the damn GSM clicking from my iphone stop attacking my baby monitor? [more inside]
posted by brent_h on Jan 5, 2008 - 15 answers