Binary Data Transfer
It's also possible to transfer Binary code (including ASCII text messages) using DTMF by treating received code as hexadecimal interpretation of nibble, assuming that E is equal to * and F is equal to #. This means that two subsequent DTMF tones are enough to transfer whole byte of data or 8-bit ASCII character.
Read more about this topic: Dual-tone Multi-frequency Signaling
Famous quotes containing the words data and/or transfer:
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