bubblestar

Asterisk - The Future of Telephony

http://www.asterisk.name/asterisk/0596009623/main.html

Asterisk - The Future of Telephony 2nd edition

http://astbook.asteriskdocs.org/ ... ml-chunk/index.html

Asteriskguru

http://www.asteriskguru.com/tutorials/

Latest News About Asterisk - A Russian Website with lots of tutorial and resources.

http://asterisk.net.ru/en/