Good document/resources to learn for non-gui configuration?

[swamarama]

hello!
been using asterisk with freepbx/trixbox/elastix.
and it has been 100% gui configuration for me.
i feel more powerful ways of using asterisk lie in non-gui configuration.
when i see something like,

exten=> blah blah blah,

i feel helpless.
if you would point to a good document(s), i'd appreciate it.
thanks.

[Dovid]

Wow some one that wants to learn the real deal .
Read this book (Asterisk: The future of telephony).
http://h6315.com/ast_docs/Asterisk%20TFOT%20v2.pdf

[john777]

Hi,

I also would like to see more documents concerning asterisk without gui.

thanks for the link.

j

[jayrod422]

www.voip-info.com is your friend

[silverglade00]

For the other newbies who may try that link, it should be http://www.voip-info.org