Ziffer 1 = f1 = 1060 Hz Ziffer 6 = f6 = 1670 Hz
Ziffer 2 = f2 = 1160 Hz Ziffer 7 = f7 = 1830 Hz
Ziffer 3 = f3 = 1270 Hz Ziffer 8 = f8 = 2000 Hz
Ziffer 4 = f4 = 1400 Hz Ziffer 9 = f9 = 2200 Hz
Ziffer 5 = f5 = 1530 Hz Ziffer 0 = f0 = 2400 Hz
fw = 2600 Hz