
December 20th, 2006, 06:54 AM
|
 |
Major General
|
|
Join Date: Dec 2003
Location: Tasmania, Australia
Posts: 2,325
Thanks: 1
Thanked 1 Time in 1 Post
|
|
Re: OT: Books and such
I saw that in a documentary once. Before the internet proto-hackers could get free long distance phone calls by ringing up the exchange and then play a toy whistle down the line to get connected.
|