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2015-05-30 10-17-26
dtmf generator beeper
1209Hz
1336Hz
1477Hz
1633Hz
697Hz
1
2
3
A
770Hz
4
5
6
B
852Hz
7
8
9
C
941Hz
*
0
#
D
3.137.165.75 / 2025-05-02_13-49-17 UTC
.