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Specification:
Dial-up -> Q4 Q3 Q2 Q1
Dial 1 -> 0 0 0 1
dial 2 -> 0 0 1 0
Dial 3 -> 0 0 1 1
Dial 4 -> 0 1 0 0
Dial 5 -> 0 1 0 1
Dial 6 -> 0 1 1 0
Dial 7 -> 0 1 1 1
Dial 8 -> 1 0 0 0
Dial 9 -> 1 0 0 0
Package:
1pc MT8870 DTMF decoder module+ Audio Cable
Dial-up -> Q4 Q3 Q2 Q1
Dial 1 -> 0 0 0 1
dial 2 -> 0 0 1 0
Dial 3 -> 0 0 1 1
Dial 4 -> 0 1 0 0
Dial 5 -> 0 1 0 1
Dial 6 -> 0 1 1 0
Dial 7 -> 0 1 1 1
Dial 8 -> 1 0 0 0
Dial 9 -> 1 0 0 0
Package:
1pc MT8870 DTMF decoder module+ Audio Cable