[rotary500]

After monts of working well, it has developed a new trouble. Will not register FXS port but FXO port works....sometimes. I had the Asterisk box DMZ'd but had to switch to port forwarding due to unknown network traffic. Under DMZ the fxo and fxs ports both register and when I switched to DMZ I forwarded the ports, 5061 and 5063 used by the SPA as well as the RTP ports specified in SIP.conf. What other ports are missing ? I can't seem to get to them by using netstat in the asterisk box and finding info on the web is wishful t hinking.

[mberlant]

Unless you have a Symmetric NAT router it is my experience that it is never necessary to forward any ports on behalf of any client device. Only host devices (like your Asterisk server) need ports forwarded into them, since they are the only devices that will ever receive unsolicited inbound packets (SIP REGISTER commands from the various clients). Since a client device never receives a REGISTER command it never needs to have its listening port forwarded to it.

I have also recently moved my Asterisk out of my DMZ and have forwarded these ports:

UDP 5060 - SIP listening port
UDP 10000-20000 - RTP port range
UDP 4569 - IAX2 listening port
TCP 22 - SSH configuration port (how I get into my Asterisk to manage it)

By the way, what is "unknown network traffic"?