TE,
Thanks for the reply. I am not the Mitel 5000 vendor so I don't know about the cards installed in it, but there is only 1 private IP address assigned to the Mitel 5000, 192.168.242.30. It is "inside" the firewall, PA-200. Not sure about the ports, I just enabled them based on the Mitel phone vendor and it worked on the existing Watchguard Edge router/firewall. I also got it working on a low end Cisco router/firewall. I just can't get voice to work over the Internet using the Palo Alto 200.