translation from other languages
| English |
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| GSM (A digital cellular phone technology (standard) first deployed in 1992. GSM uses narrowband TDMA, which allows eight simultaneous calls on the same radio frequency) | |||
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GSM : 27 phrases in 7 subjects |
| Communications | 16 |
| Electronics | 1 |
| General | 4 |
| Information technology | 1 |
| Internet | 1 |
| Microsoft | 3 |
| Technology | 1 |