 |
| |||
| double tone multiple frequency; dual-tone multi-frequency | |||
|
multifrequence bitonale : 2 do fraz, 1 tematyki |
| Technologia informacyjna | 2 |
|
| |||
| double tone multiple frequency; dual-tone multi-frequency | |||
|
multifrequence bitonale : 2 do fraz, 1 tematyki |
| Technologia informacyjna | 2 |