[tomxor]

> It asked me to press 1 for more information

If you have absolute pitch, and have a friend with absolute pitch (and I mean absolute frequency really not pitch), and are both freaks who can sing perfect sine waves... you could sing the dual tone for number 1 (697 Hz + 1209 Hz).

Since at this point we are talking about mutant alien phreaks, you should also be able to do overtone singing and squeeze out a 2 or a 3 column on your own which are 10% flat and sharp from the 2nd order harmonic of the first row 697 Hz.

Happy phreaking

[hunter2_]

> freaks who can sing perfect sine waves

Whistle, don't sing. Try it with a realtime analyzer which shows the fundamental being far more prominent than any harmonics above it, which means it's close to a sine wave. Then sing various vowels which will show as a series of harmonics whose amplitude ratios change per vowel but are never reduced nearly as much as when whistling.