Decoder: The decoder detects the DTMF tones and prints them on the screen. A sophisticated algorithm detects the tones even in noisy environments.9 Marco’s can be used to play stores phone numbers, ham radio auto patch numbers, amateur radio echolink id’s any many more.
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.DTMF decodes and encodes DTMF (Dual-tone multi-frequency) tones trough the phones speaker and microphone. Please let us know what you think. If you like DTMF please leave us a feedback at Google Market.