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Global system for mobile communications

standard to describe protocols for second generation digital cellular networks used by mobile phones

Pronunciation
/ˈɡloʊbəl ˈsɪstəm fɔr ˈmoʊbəl kəˌmjunəˈkeɪʃənz/
/ˈɡləʊbəl ˈsɪstəm fɔː məʊˈbiːl kəmjuːnɪˈkeɪʃənz/