How worried do I need to be about bringing my cellphone to the DEFCON hackers security convention? [more inside]
posted by y6y6y6 on Jul 28, 2009 - 31 answers

Asking for a friend: What is a very good technical text for understanding current and future wireless telephony standards, beginning with the basics about CDMA and TDMA and covering through 3G, LTE, LTE-Advanced, WiMax and beyond? [more inside]
posted by Pastabagel on Aug 19, 2008 - 2 answers

Palm Centro GSM Unlocked: how to get it in the U.S.? [more inside]
posted by k8t on Feb 24, 2008 - 3 answers

9-11 Technology Filter: I have never been able to even get signal on my Blackberry 8200 (GSM) within 10 seconds of liftoff, so how were cell phone calls completed from hijacked planes on 9-11? Specifically, given the prevailing handset, carrier, and tower technologies present in the Boston, NY, and DC metro and intervening areas at the time, and given the flight paths and altitudes of the hijacked planes, how were passengers able to complete cellphone calls to loved ones? [more inside]
posted by Pastabagel on Nov 30, 2007 - 20 answers

Do you use Virgin Mobile (in the U.S.)? Even better, do you use their Slice phone? All its specs are fine for me; I'm hoping to hear how you like it (especially the sound quality of calls, since the reviews of that are mixed) and/or how you like using Virgin Mobile.
posted by lorimer on Jul 26, 2007 - 19 answers

Can I buy a used or unlocked phone for my plan with Verizon, or is this a right given only to those blessed with GSM carriers? [more inside]
posted by Bengston on Feb 15, 2007 - 11 answers

Will my Verizon CDMA 800 / 1900 phone work in China? [more inside]
posted by prettyboyfloyd on Dec 9, 2006 - 11 answers

Anyone know how to change how many times a Verizon (so CDMA, not GSM) Treo 650 rings before it goes to voicemail? [more inside]
posted by EnormousTalkingOnion on Apr 27, 2006 - 10 answers

I’d love a RAZR-cool phone, but I can’t find one for CDMA! [more inside]
posted by glibhamdreck on Oct 12, 2005 - 4 answers

Is bluetooth worth the hype? I am in the process of changing cell carriers, and I am going from CDMA (Sprint) to GSM (T-Mobile) so I can't keep my phone. [more inside] [more inside]
posted by benjh on Mar 4, 2004 - 13 answers