9 ms·
Oh please, actual Real Programmers, just picked up the phone and whistled at 9.6kb/s.
by Asooka 8y ago
Oh please, actual Real Programmers, just picked up the phone and whistled at 9.6kb/s.
- rurban 8y agoMost old POTS phone switches still had the older pulse interface, so you dialed by hitting the hangup button really fast. The new fancy frequency encoding from 300-3300Hz was faster but not proper hacking anymore, you needed extra HW for this. Doable, but generating pulses was much easier.