I have test the DTMF detection with older Fastrack module i don’t know the realese of it.
The detection made with +WIND respones.
Now i have a new Fastrack realease but i can’t made detection of DTMF.
Anyone that can help?
GSM doesn’t use DTMF.
Like i say i have test it with older fastrack and works ok but i can’t remeber what setup i made in gsm module.