Thanks for your reply. I want to make sure I’m doing the correct thing. Here is my set-up.
DSL Modem (Netgear DM111P) – VOIP Adapter – Router (Cisco/Linksys WRT 160N). So I need to set up port forwarding on the modem as well? Am I setting the port forwarding the same for the modem or do I need to forward the modem to the gateway ip and then forward the router to the private ip?