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| Long tones (A setting for the phone keyboard that causes a key to continue to produce a tone as long as the key is pressed) | |||
| Langer Ton, lange Töne: 1 phrase in 1 subject |
| Communications | 1 |
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| |||
| Long tones (A setting for the phone keyboard that causes a key to continue to produce a tone as long as the key is pressed) | |||
| Langer Ton, lange Töne: 1 phrase in 1 subject |
| Communications | 1 |