 |
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| Signalisierungsstrom in der Telefonie | |||
| corriente de señalización: 3 phrases in 3 subjects |
| Communications | 1 |
| Electronics | 1 |
| Information technology | 1 |
|
| |||
| Signalisierungsstrom in der Telefonie | |||
| corriente de señalización: 3 phrases in 3 subjects |
| Communications | 1 |
| Electronics | 1 |
| Information technology | 1 |