NAT Traversal
If NAT Traversal is required, enable the 'Activate NAT Traversal' option and specify the IP address or hostname of the NAT gateway. To configure port mappings, select the option 'In the NAT device (firewall/router) a fixed port mapping is defined' and enter the relevant ports and dynamic port ranges. If NAT Traversal is configured, the corresponding object is referenced in the SIP Transport settings of the respective node under Network Settings.
In this configuration example, NAT Traversal is not needed, so this dialog can be skipped by clicking .
anynode frontend showing the NAT Traversal dialog of the Node interconnection assistant and the VoIP provider node
configuration