[asterisk-users] Asterisk architecure

[jezzzz .]

Guillaume, merci beaucoup - thanks a lot.

The links were very useful, especially tech-inivite,
the owner of the site did a great job. I got three
books last night as well: Asterisk, Understanding SIP
(Alan Johnston) and Practical VOIP Security.

>From the books and the website I can only understand
that Asterisk comes in as a registrar/location server.
In other contexts, such as a p2p environment, I assume
that no proxies are used and no location server is
required either.

So my question is again, where does Asterisk fit in? I
can perhaps see that in an incoming call screening
scenario (as depicted here:
http://www.tech-invite.com/Ti-sip-service-14.html)
Asterisk acts as the announcement server. But in other
cases, such as 'transfer unattended' or 'call
forwarding - busy'
(http://www.tech-invite.com/Ti-sip-service-8.html),
there is no apparent need for Asterisk, is that
correct?

I would tremendously appreciate a little more detail
on scenarios where Asterisk is required/used.

Jez

--- "G(P)L" <lehmann18 at wanadoo.fr> wrote:

> jez . a écrit :
> > Dear all,
> > 
> > I've recently installed Asterisk and am trying to
> understand where 
> > exactly Asterisk 'fits' in my VOIP architecture.
> Can/does Asterisk work 
> > as a proxy. I am specifically interested in SIP.
> Could anyone perhaps 
> > point me out to a diagram with SIP users and
> Asterisk to better 
> > understand how I should set up my network?
> > 
> > Thank you
> 
> 
> Hi,
> 
>      You can find some interesting diagram here :
> http://www.tech-invite.com/Ti-sip-dialog.html
> 
> Other diagrams more "architecture ortiented" :
> http://lehmann.free.fr/divers/SIP%20tutorial.pdf
> slides 32 and after.
> The document is not mine :)
> 
> If you want something more specific to Asterisk's
> architecture, I 
> recommand you this book : 
>
http://www.eyrolles.com/Informatique/Livre/9780596009625/livre-asterisk.php
> 
> Bye
> Guillaume Lehmann
> 
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