Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
telephone signaling technology
|
| gptkbp:alternativeName |
gptkb:DTMF
|
| gptkbp:developedBy |
gptkb:Bell_System
|
| gptkbp:enables |
faster dialing
automated telephone services |
| gptkbp:firstReleased |
Carnegie and Greensburg, Pennsylvania
|
| https://www.w3.org/2000/01/rdf-schema#label |
Touch-Tone
|
| gptkbp:introducedIn |
1963
|
| gptkbp:keypadLayout |
3x4 grid
|
| gptkbp:marketedAs |
gptkb:Western_Electric
|
| gptkbp:numberOfKeys |
12
|
| gptkbp:replacedBy |
rotary dial
|
| gptkbp:standardizedBy |
gptkb:ITU-T_Recommendation_Q.23
|
| gptkbp:technology |
dual-tone multi-frequency signaling
|
| gptkbp:trademarkOf |
gptkb:AT&T
|
| gptkbp:usedFor |
telephone dialing
|
| gptkbp:usedIn |
telecommunications
telephone banking interactive voice response systems voice mail systems |
| gptkbp:bfsParent |
gptkb:Touch-tone_telephone
gptkb:DTMF |
| gptkbp:bfsLayer |
6
|