My application operates with the transmission of DTMF tones; I can transmit tones, but I don’t receive them.
DTMF tones can be directly transmitted via the serial link (AT+VTS) but they cannot be decoded. A DTMF decoder has to be inserted on application level, converting received audio signals in digital signals.
The DTMF decoder feature will be availble on a future version of our new V2 modules (10.00.xx4).
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