GSM (Global System for Mobile Communications)

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Java

The Global System for Mobile Communications (GSM) is a wireless network system that is widely used in Europe, Asia, and Australia. GSM is used at three different frequencies: GSM900 and GSM1800 are used in Europe, Asia, and Australia, while GSM1900 is deployed in North America and other parts of the world.

Sun Microsystems — Java Platform, Micro Edition (Java ME) Mobility Glossary