[asterisk-dev] What's the best source for architectural understanding?

[Moises Silva]

> So, one centralized dispatcher looks for both types of off-hooks on all
> channels?
No, for each telephony technology must exists a channel driver that
will "listen" or "expect" for incoming calls. Once detects an incoming
call, will try to authenticate the call against its devices configured
in its configuration file (sip.conf, iax.conf, zapata.conf,
unicall.conf etc), and will start a new thread in the PBX (extensions
matching) for handling that new call. So, you have at least 1 listener
thread for each telephony technology. And 1 thread for each call
executing extensions in the dial plan.

Regards
-- 
"Su nombre es GNU/Linux, no solamente Linux, mas info en http://www.gnu.org"