touchtones
Dial pad tones
Touchtones are the tones produced by pressing buttons on a telephone keypad, each button generating a distinct frequency pair.
The system replaced rotary dialing in the mid-twentieth century.
Figuratively, a touchstone—often confused with touchtone—is a standard for judging quality.
She navigated the automated system using touchtones.
Button array for input
- dialGraduated circular indicator
- buttonsSmall disc fasteners
- phoneHandheld communication device
- receiverOne who accepts transmission
frequency · signal · dialing · numbers · beep · landline · handset · telecommunications
Frequency of sound
- noteShort written record
- vibrationRapid oscillating movement
- resonanceAmplified oscillation at natural frequency
- frequencyRate of recurrence
harmony · tuning · sound · timbre · chord · acoustic · melodic · interval
keypad
Button array for input
receiver · frequency · signal · dialing · numbers · beep · landline · handset · telecommunications · pulse
pitch
Frequency of sound
- noteShort written record
- vibrationRapid oscillating movement
- resonanceAmplified oscillation at natural frequency
frequency · harmony · tuning · sound · timbre · chord · acoustic · melodic · interval · scale
benchmark
Standard for comparison
yardstick · baseline · standard · hallmark · litmus · barometer · gauge · indicator · exemplar · model
tradition
Custom passed through generations
roots · cornerstone · ritual · symbol · custom · legacy · pillar · anchor · foundation · landmark