Your router setup is the same as mine.
1. Log onto your router
2. On the left side of the page, under Maintenance, you will see "Attached Devices". Click that. Then write down the IP address and MAC address your computer is using, and the Device Name of your computer.
3. Under "Advanced", click on "LAN Setup".
4. On the page that comes up, under "Address Reservation", click "Add"
5. Now fill in the IP Address, MAC Address, and Device Name. Then click "Add".
6. Under "Advanced", click on "Port Forwarding/Port Triggering"
7. Select "Port Forwarding"
8. Click "Add Custom Service"
9. "Service Name" is A-G Voice
10. "Service Type" is TCP/UDP
11. "Starting Port and Ending Port" are both 3782
12. "Server IP Address" is the IP Address you assigned is step 6
13. Click "Apply"
14. Click "Add Custom Service"
15. Service Name is G-G Voice
16. Service Type is TCP/UDP
17. Starting Port and Ending Port is 3290
18. Server IP Address is the IP address you assigned in step 6
19. Click "Apply"
20. Restart your computer
Good Luck!!!