CCITT 5 Bluebox for the Atari?

[floweredup]

Was there ever a working CCITT 5 software bluebox for the Atari 8 bit used in the 1980s and 90s?

 

I know there was plenty on the C64, Amiga and PC and I'd guess the sound chip would be up to sending 3 freqs at once.

[jfalcon]

not that i can recall.  CCITT being a european standard, the software usually didn't jump the ocean gap.

[thorfdbg]

CCITT (now ITU) is part of the united nations, they generate international standards, not european standards. ECMA, for example, is a european organization, but ITU isn't.

[doctor_x]

Yes there was.. Happy Hacker included CCITT tones.