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4.4 Advance Setup
(1) NAT Traversal
/VoIP Setup/Advance Setup/NAT Traversal
If your VoIP gateway is installed behind NAT, you may need a special configuration and
server to establish the VoIP communication, this gateway support several method for NAT
Traversal as below:
z
By Outbound Proxy:
User can appoint an Outbound Proxy Server to handle the NAT traversal on
VoIP
Setup/Register Sever/Server #/
z
Declare NAT IP address:
Select to enable the input the NAT router IP of the network.
z
Use STUN server
Enable STUN and input the STUN server’s IP for handle the NAT traversal, you can
input 2 sets of STUN servers IP.
The Gateway will display the system found NAT IP address.
For store back to flash memory, please press Save Modification (
/System Maintenance/Save
Modification/
).