What are you going to learn on this book?

What Asterisk is, What Asterisk does
Download and Install
Building a simple PBX
Analogic and Digital Channels
Designing a VoIP Network
SIP Channels
IAX Channels
Dialplan Advanced Features
PBX Features such as Transfer and Pickup
Call Queues
Asterisk CDR
Asterisk AGI and AMI
Asterisk Real Time