Oldschool phone phreaking.
Back in the early 90's when no kid owned a cellphone,
I wrote an ANSI C program that output DTMF tones via terrible 8 bit audio.
Made an even worse recording of it on a mono tape.
Played it back into a payphone handset via my sony walkman's orange headphones.
Voila, free calls! ...
(replicated here in Java for sake of Nostalgia)
Dedicated to Bubbles!
Joy Bubbles
Cheers!
~Gordon
public class dialer {
public static void main(String[] args) {
/*
* Dial some dtmf Tones:
*/
try {
// consists of a 0.4-second pulse, a 0.2-second pause, a 0.4-second pulse, and a 2-second pause.
// //UK boop boop
// dtmf.generateTones(400, 450, 400, 10);
// dtmf.generateTones(0, 0, 200, 10);
// dtmf.generateTones(400, 450, 400, 10);
// dtmf.generateTones(0, 0, 2000, 10);
// // 2
// dtmf.generateTones(400, 450, 400, 10);
// dtmf.generateTones(0, 0, 200, 10);
// dtmf.generateTones(400, 450, 400, 10);
// dtmf.generateTones(0, 0, 2000, 10);
// // 3
// dtmf.generateTones(400, 450, 400, 10);
// dtmf.generateTones(0, 0, 200, 10);
// dtmf.generateTones(400, 450, 400, 10);
// dtmf.generateTones(0, 0, 2000, 10);
// // end UK
//USA Dialtone
dtmf.generateTones(350, 440, 2000, 10);
//USA dial a phone number
dtmf.generateTones(770, 1336, 100, 10);
dtmf.generateTones(770, 1336, 100, 10);
dtmf.generateTones(941, 1336, 100, 10);
dtmf.generateTones(697, 1209, 100, 10);
dtmf.generateTones(697, 1447, 100, 10);
dtmf.generateTones(941, 1336, 100, 10);
dtmf.generateTones(852, 1336, 100, 10);
// north america ring
dtmf.generateTones(440, 480, 2000,0);
dtmf.generateTones(0, 0, 4000, 0);
dtmf.generateTones(440, 480, 2000,0);
dtmf.generateTones(0, 0, 4000, 0);
dtmf.generateTones(440, 480, 2000,0);
dtmf.generateTones(0, 0, 4000, 0);
dtmf.generateTones(440, 480, 2000,0);
dtmf.generateTones(0, 0, 4000, 0);
//
//USA Busy Signal
dtmf.generateTones(480,620,500,0);
dtmf.generateTones(0,0,500,0);
dtmf.generateTones(480,620,500,0);
dtmf.generateTones(0,0,500,0);
dtmf.generateTones(480,620,500,0);
dtmf.generateTones(0,0,500,0);
dtmf.generateTones(480,620,500,0);
dtmf.generateTones(0,0,500,0);
dtmf.generateTones(480,620,500,0);
dtmf.generateTones(0,0,500,0);
dtmf.generateTones(480,620,500,0);
dtmf.generateTones(0,0,500,0);
dtmf.generateTones(480,620,500,0);
dtmf.generateTones(0,0,500,0);
dtmf.generateTones(480,620,500,0);
dtmf.generateTones(0,0,500,0);
dtmf.generateTones(480,620,500,0);
dtmf.generateTones(0,0,500,0);
dtmf.generateTones(480,620,500,0);
dtmf.generateTones(0,0,500,0);
//
// //USA Payphone
// payphone.dime();
// payphone.nickle();
// payphone.qaurter();
} catch (Exception e) {
e.printStackTrace();
}
}
}