One-Channel GSM VoIP Gateway
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D
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Media Qos
Similar to the Signaling QoS, the Media Qos in intended to improve the voice
performance or quality if your local network supports QoS.
E
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Media Encryption
GoIP1 Gateway supports different encryptions for voice media. Select the one that you
prefer.
F
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Symmetric RTP
Normally GoIP1 Gateway uses RTP ports based on the configuration. If this box is
checked, GoIP1 Gateway will identify RTP ports from the media traffic it has received
and use the same ports when sending media traffic.
G) Media NAT Traversal
Similar to Signaling NAT Traversal, this feature allows media packets (RTP) to be routed
properly in various network environments.
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None
Select
None
to disable this feature.
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STUN
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RFC 3489
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STUN (Simple Traversal of UDP (User Datagram Protocol) through NATs (Network
Address Translators)) is a network protocol allowing a client behind a NAT (or
multiple NATs) to find out its public address, the type of NAT it is behind and the
internet-side port associated by the NAT with a particular local port.
Select STUN(RFC 3489) to use a STUN server for Signaling NAT Traversal. Enter the IP
Address or the domain name of the STUN server to be used.
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Port forwarding Support
Port forwarding (sometimes referred to as tunneling) is the act of forwarding a
network port from one network node to another. This technique can allow an
external user to reach a port on a private IP address (inside a LAN) from the outside
via a NAT-enabled router.
In order for this feature to work, the local network Gateway must support this
feature and be set up properly. Please consult your network administrator for help
to enable this Port forwarding feature.
