Template:Multi-frequency signaling tones

Multifrequency signals

Code	700 Hz	900 Hz	1100 Hz	1300 Hz	1500 Hz	1700 Hz
1	X	X
2	X		X
3		X	X
4	X			X
5		X		X
6			X	X
7	X				X
8		X			X
9			X		X
0/10				X	X
11/ST3	X					X
12/ST2		X				X
KP			X			X
KP2				X		X
ST					X	X