Xblue Networks X-2020 - Manual (Page 93)

XBLUE Networks 93
Web Programming
SIP
6
NAT Settings
Network Address translation (NAT) is used to route class A or class B IP addresses directly to a device located on a
Local Area Network (LAN) Class C. It is not common to use the NAT Settings feature on the telephone.
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NAT Type: - The X2020 has four different NAT types; STUN, SIP Ping, Port Mapping and UDP Heartbeat.
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STUN - Simple Traversal of User Datagram Protocol - This protocol requires assistance from a 3rd-Party
network server (STUN Server) located on the public side of the NAT.
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SIP Ping -
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Port Mapping - This protocol allows the X2020 to automatically contact and configure a remote router,
which is essentially the same as doing port forwarding in the remote router.
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UDP Heartbeat -
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SIP PING Interval Time (ms): - This is the amount of time, in milliseconds, that it takes to communicate
with the server.
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STUN Server IP: - Enter the IP Address of the STUN IP Server. (This is not a common setup)
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STUN Server Port: - This port must match the port programmed on the STUN Server. (This is not a common
setup)
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Extern Router IP: - Used with Port Mapping - Enter the IP Address of the external router. (This is not a
common setup)
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Extern Signal Port: - Used with Port Mapping - This port must match the port programmed on the external
router. (This is not a common setup)
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Extern RTP Port Base: - Enter the RTP Base Port. (This is not a common setup)