GSM (Global System for Mobile communications: originally from Groupe Spécial Mobile) is the most popular standard for mobile phones in the world. Its promoter, the GSM Association, estimates that 80% of the global mobile market uses the standard. GSM is used by over 3 billion people across more than 212 countries and territories. Its ubiquity makes international roaming very common between mobile phone operators, enabling subscribers to use their phones in many parts of the world. GSM differs from its predecessors in that both signaling and speech channels are digital, and thus is considered a second generation (2G) mobile phone system. This has also meant that data communication was easy to build into the system.
Masterproject
Fri, 2009-02-20 14:41 | 
Brendan Johan LeeFor those of you who are wondering what has happened to me, I've gone back to school. I've just started a two years masters program. And my masters topic is, *drum roll", handset localization in mobile networks. So I'm doing a master in the topic that has been my hobby for the last 10 year or so. Even though I at the moment feel like I will not have time to sleep for the next two years, hopefully I'll be able to be a bit more active here in the future. You will probably see some localization software here soon, and probably some begging for help collecting data too. Oh.Read more »
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