Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:telecommunications_company
|
| gptkbp:abbreviation |
gptkb:DTMF
|
| gptkbp:alsoKnownAs |
gptkb:Dual-tone_multi-frequency_signaling
|
| gptkbp:enables |
Faster call setup
Automated services |
| gptkbp:hasComponent |
Keypad
Tone generator |
| https://www.w3.org/2000/01/rdf-schema#label |
Touch-tone dialing
|
| gptkbp:introduced |
gptkb:Bell_System
|
| gptkbp:introducedIn |
1963
|
| gptkbp:replacedBy |
Rotary dialing
|
| gptkbp:standardizedBy |
gptkb:ITU-T
Recommendation Q.23 |
| gptkbp:usedFor |
Telephone banking
Interactive voice response systems Voice mail navigation |
| gptkbp:usedIn |
Telephone systems
|
| gptkbp:uses |
Keypad
Audio tones Seven different frequencies Twelve or sixteen keys |
| gptkbp:bfsParent |
gptkb:Telephone
|
| gptkbp:bfsLayer |
4
|