FERNSPRECHAPPARAT MIT RUFTONABSCHALTUNG
The invention specifies a telephone set which allows the user to suppress the ringing tone for either a presettable time interval or the duration of the current call attempt after it has sounded.
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| Format: | Patent |
| Sprache: | ger |
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| Online-Zugang: | Volltext bestellen |
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| Zusammenfassung: | The invention specifies a telephone set which allows the user to suppress the ringing tone for either a presettable time interval or the duration of the current call attempt after it has sounded. |
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