DTMF decodes and encodes DTMF (Dual-tone multi-frequency) tones trough the phones speaker and microphone. Encoder: Always 2 tones are assigned to each key. The length of the tone and the pause between the tones can be set from 35ms to 1500ms. A total of 36 marco's can be used to play phone numbers, ham radio auto patch numbers, amateur radio echolink id's any many more.
It's free to get the installer of DTMF, also, you can have a look at users' reviews on Droid Informer. The app works fine on Android 2.3 and above. The download of this application is safe and secure. DTMF is created by Wolphi LLC and its category is Communication.