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V300 VoIP Telephone Adaptor/Router
YML768 Rev1
5.1.2 STUN
STUN stands for Simple Traversal of UDP over NAT. It is a protocol which enables the
V300 to detect the presence and type of NAT behind which the phone is placed. STUN will
allow SIP signalling and bi-direction to successfully traverse a NAT without requiring any
configuration changes on the NAT.
Select Enable or Disabled, enter all the information if Enable is selected, and then click on
the
Modify
button to apply the new settings.
Field
Description
STUN IP or Domain Name
The IP address or domain name of the STUN server,
which could be provided by your service provider, or
a free STUN server on the Internet.
STUN type
This column is Read Only. The STUN mechanism
will identify your NAT type and display it on the
screen
Port No
Port number of the STUN server where the server
listens to your STUN client requests. Default 3478.
