Can't receive call from outside (HELP)(RESOLVED

Hi, I have a problem triying that my external call come in to my asterisk server with my sip provider, I got the server right now in the DMZ zone and I can place call to a regular phone number but I have problem receiving it. I think the server don’t connect to my SIP provider, because don’t ring or access the voice menu, I call from a regular phone and about a 30 seconds I received a busy signal. I think is something about the route to connect to my provider.
Any idea.
thanks

did you watch your CLI to see if there is any activity?

JB
www.astawerks.com

Thanls for youe help, I resolve my problem.