Unicorn 3112 User Manual
Copyright © 2008
Hanlong Technology Co., Ltd
Page 33 of 42
6.1.6.5
FXO Port Settings:
FXO PORT SETTING
Setting Options
Meaning
Account Active:
Set to the YES, the account can be available
SIP Server
SIP Server’s URI or IP address
Outbound Proxy
SIP Outbound Proxy Server’s URI or IP address
NAT Traversal
This parameter defines whether the Unicorn 3112 NAT
traversal mechanism will be activated or not. If
activated (by choosing “Yes”) and a STUN server is
also specified, then the Unicorn 3112 will behave
according to the STUN client specification. Under this
mode, the embedded STUN client inside the Unicorn
3112 will attempt to detect if and what type of
firewall/NAT it is sitting behind through communication
with the specified STUN server. If the detected NAT is
a Full Cone, Restricted Cone, or a Port-Restricted
Cone, the Unicorn 3112 will attempt to use its mapped
public IP address and port in all its SIP and SDP
messages. If the NAT Traversal field is set to “Yes”
with no specified STUN server, the Unicorn 3112 will
periodically (every 20 seconds or so) send a blank
UDP packet (with no payload data) to the SIP server to
keep the “hole” on the NAT open.
SIP User ID
SIP service subscriber’s User ID
Authenticate ID
SIP service subscriber’s Authenticate ID.
