[Asterisk-java-users] broadly, why even use asterisk?

[thufir <haw...@gm...>]

I'm currently setting up an Asterisk system, but it seems quite complex 
-- the guide alone is 700+ pages.  On the other hand, I see:

http://www.javaworld.com/article/2071781/java-web-development/sip-programming-for-the-java-developer.html

Gee, that seems simple.  Help me to understand what asterisk-java does; 
I mean I understand that it provides a Java hook or API for Asterisk -- 
which is a good thing.

I haven't really delved into the sample project which I was directed to 
last time, but I have it bookmarked for later.  I'm just curious about 
this projects goals.  Is SIP deceptively simple?  By which I mean that 
SIP servlets don't scale...except, if that's a problem, there are JVM 
solutions for that..


thanks,

Thufir