What ports do I need to open if my Nikkom Phone Adapter is behind a firewall?
No ports have to be opened up for Nikkom to work properly if the phone is behind a simple NAT and the Nikkom-issued Phone Adapter has a private IP address. Most of our customers just connect to their phone adapter and use the service because Nikkom has designed the service to work behind NATs, which keeps the Nikkom Phone Adapter available at all times. If you have a firewall, you must give the Nikkom Phone Adapter rights to access certain Internet ports, including 69-69 UDP, 5060-5063 UDP, and 10,000-20,000 UDP. If you plan to connect your PC to the Internet as well, the IP address for the Nikkom Phone Adapter can either be provided by your ISP or your network router (when the router is set to DHCP).
