Phreaking phones with a voice recorder
While assembling todayís news items for the OíReilly Digital Audio site, I came across an interesting article about making free phone calls with an iPod. Basically, you download some WAV files, make playlists in your ípod, and then blare them into a defenseless payphone. (Some of the WAVs duplicate the confirmation tones the phone generates when a caller inserts a coin; others duplicate the sounds of the 0Ė9 buttons.)
By David Battino at O'Reilly.
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