Does what its supposed to! Just about the only reason for such an app to exist, is to allow you to produce DTMF tones, on demand. Usually, this is because you don't have a way to generate them otherwise. These goofy wannabe DTMF apps, though, generate a SET duration tone, rather than play the tone as long as you press the key! Some services need longer tones. That's why I love this one. Why not 5 stars? Only because I could imagine some enhancements, such as recording/saving strings, etc. This is simple, and powerful, though.
Best one Great .I love it with full dtmf 16 tones. Best for my personal voip to gsm mini exchange!!!
Add a redial function to this app, and I personally would give it a 5-star rating. 3 stars for now.
Since tones became your fingers. Gives all original tones of the "Blue Box." And you thought there were only twelve tones, Grasshopper!
Perfect! ! When the phone is not picking up the numbers you dial, this does the job!
Perfect Thanks, this simple app saved my skin when I needed to perform a business critical function with an automated call back system which was not accepting the tones from my land line. I simply played the tone into the receiver :)
Version 1.02: Modified to support Android 2.1 or higher. No change in operation.
Version 1.01: Corrected issue with FC. Made buttons larger on high density screens.
Frequency Sound Generator - waveform audio signal generator/ function generator