AFAIK.......................................................
0 = 941 & 1336Hz
1 = 697 & 1209Hz
2 = 697 & 1336Hz
3 = 697 & 1477Hz
4 = 770 & 1209Hz
5 = 770 & 1336Hz
6 = 770 & 1477Hz
7 = 852 & 1209Hz
8 = 852 & 1336Hz
9 = 852 & 1477Hz
A = 697 & 1633Hz
B = 770 & 1633Hz
C = 852 & 1633Hz
D = 941 & 1633Hz
*  = 941& 1209Hz
# = 941 & 1477Hz

Gerry Cox

>Can anyone furnish me with a list of the frequencies which correspond to
those used in 'tone' dialling; 0-9, #, * ?
>Dan Lloyd.
>ABB Metering Systems Ltd.