Four-Channel GSM VoIP Gateway
23
2
)
)
)
)
DTMF Payload Type
DTMF Payload Type is defined by RFC2833 protocol to carry the tone definitions for
various applications. The default DTMF Payload Type is 101. Please consult your VoIP
service provider for the proper setting if required.
C
)
)
)
)
Signaling Qos
Signaling QoS improves the performance of SIP signaling. If local network device
supports Qos, select this field accordingly. Please consult your network administrator for
further information.
D
)
)
)
)
Signaling Encryption
GoIP4 Gateway supports different encryptions for SIP signaling. Select the one that you
prefer.
E) Signaling NAT Traversal
Signaling NAT traversal may be required if the GoIP4 Gateway is put behind a
NAT/firewall (or multiple NATs/firewalls). Depending on your network environment and
SIP Server capabilities, this feature may or may not be turned on.
1
)
)
)
)
None
Select
None
to turn off this feature.
2
)
)
)
)
STUN (RFC 3489)
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.
2) Relay Proxy
Relay proxy is a proprietary NAT traversal technology. Please consult your service
provider for more information.
3.4.4 Media Setting
Click on “
Media Settings
” in the “Call Setting” menu to access the parameters available for
media settings.