We have two Tandberg 880s, one in Ohio and one in Arkansas. The one in Ohio is behind a Cisco 1600 router and the one in Arkansas is behind a Cisco 1841 router. I have a static NAT setup on the respective routers for both systems. After working with tech support (for hours), it seems that both systems can call out, but they cannot receive calls. Tech support said I need to open up the following list of ports for both incoming and outgoing traffic.
udp 2326 - 2373
tcp 5555 - 5565
Aside from the static NAT (ip nat inside source static <inside address> <outside address>), what else do I need to do? There should be no access lists that are blocking that traffic (ip permit any any). Do I need to use an access list or use a static port forwarding? I really need to have this resolved ASAP so any help is appreciated. Thanks.