asterisk users - Nov 2006 - How to secure access to PSTN line through Linksys gateway?

Hello

I successfully hooked up a Linksys 3102 SIP gateway 
(http://www.voip-info.org/users/683/21683/images/716/SPA3102_lrg.jpg) to an 
Asterisk server, but since it's connected to a PSTN line, I must make sure 
it cannot be used by unauthorized users from the Net. Actually, even legit 
users with an account on the Asterisk server shouldn't be able to use it 
(outgoing calls should go through a VoIP provider instead).

Does someone know what steps must be taken in Asterisk and on the Linksys 
to secure access to the Linksys box?

Thank you.

On Tue, Nov 21, 2006 at 12:08:45AM +0100, Vincent Delporte
wrote:
> Hello
> 
> I successfully hooked up a Linksys 3102 SIP gateway 
> (http://www.voip-info.org/users/683/21683/images/716/SPA3102_lrg.jpg) to an
> Asterisk server, but since it's connected to a PSTN line, I must make
sure
> it cannot be used by unauthorized users from the Net. Actually, even legit 
> users with an account on the Asterisk server shouldn't be able to use
it
> (outgoing calls should go through a VoIP provider instead).
> 
> Does someone know what steps must be taken in Asterisk and on the Linksys 
> to secure access to the Linksys box?
How do you define "authorised"?

-- 
               Tzafrir Cohen       
icq#16849755                    jabber:tzafrir@jabber.org
+972-50-7952406           mailto:tzafrir.cohen@xorcom.com       
http://www.xorcom.com  iax:guest@local.xorcom.com/tzafrir

At 03:08 21/11/2006 -0700, Tzafrir Cohen wrote:
>How do you define "authorised"?
Users who successfully registered with the Asterisk server, but regardless, 
even those shouldn't be allowed to make calls through the Linksys since we 
have a VoIP provider that offers better prices for outgoing PSTN calls anyway.

So... is there something that can be done on the Asterisk server to forbid 
anyone from the Net from using the Linksys to make PSTN calls?

Thank you.