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STUN
Simple Traversal of User Datagram Protocol through Network Address
Translators is a protocol that allows applications to determine the types of
NATs and firewalls are in between them and the internet. STUN also
provides the ability for applications to determine the public IP addresses
allocated to them by the NAT.
STUN Server: Port number
Enter STUN domain name or IP address if STUN is enabled.
6.12 STUN&UPnP Settings – Manual Config External IP/Port
User Defined External IP/Port
Enable or disable the settings for configuring the user defined external IP
address and port number.
External IP Address
Setup the external IP address manually.
Use Stun server to get external IP address.
Use UPnP to get external IP address.
External SIP Port
External SIP port
External Media Port
External media port
NOTE:
It has to be complied with the settings of virtual server of the NAT devices if IP Phone enables the configuration
manually.
6.13 STUN&UPnP Settings – UPnP Setting
UPnP
Enable or disable universal plug and play. Some NAT supports UPnP so
STUN is not required and must be disabled.
