File:DTMF Dialer Inside.jpg
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Size of this preview: 708 × 599 pixels. Other resolutions: 284 × 240 pixels | 567 × 480 pixels | 907 × 768 pixels | 1,210 × 1,024 pixels | 2,420 × 2,048 pixels | 3,074 × 2,602 pixels.
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Deutsch: DTMF-Tongeber. Geräte wie dieses wurden um 1980 bis 1990 verwendet um externen Zugang zu Anrufbeantwortern (Sprachmenü) über Impulswahltelefone zu erhalten, die nicht in der Lage waren, DTMF-Wähltöne zu erzeugen.
English: DTMF Dialer. Devices like this have been used around 1980 to 1990 to get external access to answering machines (voice menu) via pulse dialing telephones not capable generate DTMF dial tones. |
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| Date | 12 February 2017 (upload date) | ||||
| Source | Own work | ||||
| Author | wdwd | ||||
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I, the copyright holder of this work, hereby publish it under the following license:
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| Annotations | This image is annotated: View the annotations at Commons |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:23, 12 February 2017 | | 3,074 × 2,602 (2.11 MB) | Wdwd (talk | contribs) | == {{int:filedesc}} == {{Information |Description={{de|DTMF-Tongeber. Geräte wie dieses wurden um 1980 bis 1990 verwendet um externen Zugang zu Anrufbeantwortern (Sprachmenü) über Impulswahltelefone zu erhalten, die nicht in der Lage waren, DTMF-Wä... |
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