3 ms·
And before that less widespread, but in circulation [eg 0] for "free" long distance phone calls. [0] https://en.wikipedia.org/wiki/Blue_box https://en.wikipedi
by croon 7y ago
And before that less widespread, but in circulation [eg 0] for "free" long distance phone calls.
[0] https://en.wikipedia.org/wiki/Blue_box https://en.wikipedia.org/wiki/Blue_box
- jagged-chisel 7y agoYou didn’t insinuate this, but to be clear, a blue box didn’t emit “touch tones.”