Before computer hacking was phone phreaking (hacking on the public switch telephone network)*

- YouTube -
 - The History of Phone Phreaking, 1960-1980 (part 2 of 6)
 - The History of Phone Phreaking, 1960-1980 (part 3 of 6)
 - The History of Phone Phreaking, 1960-1980 (part 4 of 6)
 - The History of Phone Phreaking, 1960-1980 (part 5 of 6)
 - The History of Phone Phreaking, 1960-1980 (part 6 of 6)

 - Asterisk Part 1 - Installing Asterisk
 - Asterisk Part 2 - Running Asterisk
 - Asterisk Part 3 - Using extensions with Asterisk
 - Asterisk Part 4 - Using "Contexts" and Dial Plans -- Part 1
 - Asterisk Part 5 - Using "Contexts" and Dial Plans -- Part 2
 - Asterisk Part 6 - Using Softphones
 - Asterisk Part 7 - Introduction To Trixbox
 - Asterisk Part 8 - Trixbox Features
 - Asterisk Part 9 - Trixbox Features - Part 2
 - Asterisk Part 10 - Additional Resources and Conclusion

 - Building VoIP Clusters with Asterisk (1 of 6)
 - Building VoIP Clusters with Asterisk (2 of 6)
 - Building VoIP Clusters with Asterisk (3 of 6)
 - Building VoIP Clusters with Asterisk (4 of 6)
 - Building VoIP Clusters with Asterisk (5 of 6)
 - Building VoIP Clusters with Asterisk (6 of 6)

- PSTN Training -
Alexander Graham Bell's Patent for the Telephone - From the national archives
History of Phone Phreaking - Great web site of the history of Phone Phreaking
SS7 Training - full book online
Training from inetdaemon - great online training

- History of the Cell phone -
Martin Cooper - Father of the Cell phone (at least a great PR man)
Centel 1989 - one of first cell phone commercials
Radio Shack Cell - now I feel old I sold these phones!
Timeline - a nice jpeg showing the timeline of the phone