Hi! I'm new to the board. Hope you're doing well. If you could help me address this issue, I'd like to thank you in advanced. Here's the background: I have configured Asterisk to work on Tomato and everything is working great (internally speaking). Every SIP client on LAN is able connect to the * server on Tomato, no problem there. I get both call-in and out to work for every ATA devices in the house. However, I'd like to have other SIP clients outside the local network to be able to successfully register the * server. That's where the problem lies. Even though the firewall is configured to accept incoming connections on port 5060, it drops all external attempts on this rule. Please note though, I did use the external IP to connect to the router. Please take a look at the iptables output messages: iptables -nvL As you can see, I also have port 22 opened for SSH connections and it works fine. The firewall rule for port 5060 is similar but it doesn't work. Why not? Your help is greatly appreciated. Thank you!