Exactly! And the DIY version of it looked like this: http://commons.wikimedia.org/wiki/File:Akustikkoppler_CCC_Datenklo.jpg http://commons.wikimedia.org/wiki/F

Exactly! And the DIY version of it looked like this: http://commons.wikimedia.org/wiki/File:Akustikkoppler_CCC_Datenklo.jpg http://commons.wikimedia.org/wiki/File:Akustikkoppler_CCC_Da... And it supports 300bps and 1200bps speeds.