DTMF, Blue, and US/UK Red Box tone generator for the CardPuter device in Arduino Sketch
A small script for generating DTMF, Blue Box, and US & UK Red box tones.
Whilst DTMF is still commonly used in telephony, blue boxing and red boxing were used in the 1970s - late 90s (?) for making fraudulent calls. To the best of my knowledge, neither has working in at least a decade, but just a reminder that attempting to blue/red box is almost certainly illegal in your country.
After running the program you'll be preseted with the following message:
Enter a number or use
'd' for DTMF (default),
'b' for Blue Box,
'r' for US Red Box or
'u' for UK Red Box
From here you can press d to enter DTMF mode and then use 0-9 and a-d to generate DTMF tones.
If you press b you will see:
Blue Box Mode:
0 to 9
'k' for KP
's' for ST
From here you can press 0-9, k keep pulsing or s for start.
If you press r you will see:
US Red Box Mode:
1 for nickle
2 for dime
3 for quarter
4 for dollar
From here you can press 1-4, for nickle, dime, quarter or dollar respectively.
Finally, if you press u you will see:
UK Red Box Mode
1 for 10p
2 for 50p
From here you can press 1-2, for 10 or 20 pence respectively.