asterisk users - Dec 2010 - Configuring server to call SIP numbers on the Net?

Hello

This is a newbie question : With a simple Asterisk server on a private
LAN, an FXO port to handle the PSTN, and an ADSL connection to the
Net, ie. with no VOSP in the mix... how should I configure Asterisk so
that SIP clients can dial SIP numbers on the Net, such as those below
to perform an echo test?

www.voip-info.org/wiki/view/Phone+Numbers

I tried pasting numbers in XLite, but nothing happens. Do I need to
add something to extensions.conf for magic to happen?

Thank you.

On Mon, Dec 13, 2010 at 07:28:58PM +0100, Gilles wrote:
>This is a newbie question : With a simple Asterisk server on a private
>LAN, an FXO port to handle the PSTN, and an ADSL connection to the
>Net, ie. with no VOSP in the mix... how should I configure Asterisk so
>that SIP clients can dial SIP numbers on the Net, such as those below
>to perform an echo test?
If you want to dial a SIP number that's not on your local server, you
need to route it via dialplan logic. You could do this with a prefix
code if you want to be able to dial lots of numbers at the same server:

exten => _9NX.,1,Dial(SIP/user:pass at ekiga.net/${EXTEN:1})

or something more specific if you just want to connect to one:

exten => 602,1,Dial(SIP/user:pass at ekiga.net/*010600)

(Don't quote me on syntax; I don't have any SIP examples handy as I only
use it for local-network calls.)