Fréquences DTMF (Touch-Tone)
DTMF (Touch-Tone) Frequencies
Freq. Pair
1209 Hz
1336 Hz
1447 Hz
1633 Hz
697 Hz
1
2
3
A
790 Hz
4
5
6
B
852 Hz
7
8
9
C
941 Hz
*
0
#
D