User's Manual

Table Of Contents
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GXW450X User Manual
Version 1.0.0.6
“From” Header.
For example, "trunk.GXW450X.provider.com" is the From
Domain in
From Header: sip: 1234567@trunk.GXW450X.provider.com.
Transport
Configure the SIP transport protocol to be used in this trunk. UDP; TCP
or TLS. The default setting is "UDP"
After creating the SIP Trunk user can click on to edit the trunk and have detailed parameters to
configure. Below is a table of the Basic and advanced parameters of a SIP trunk.
Table 29: SIP Trunk Configuration Parameters
Basic Settings
Provider Name
Configure a unique label to identify this trunk when listed in outbound
rules, inbound rules and etc.
Host Name
Configure the IP address or URL for the VoIP provider’s server of the
trunk.
NAT
Turn on this option when the gateway is using public IP and
communicating with devices behind NAT. If there is one-way audio issue,
usually it’s related to NAT configuration or SIP/RTP port configuration on
the firewall.
Disable This Trunk
If selected, the trunk will be disabled.
Note: If a current SIP trunk is disabled, GXW450X
will send
UNREGISTER message (REGISTER message with expires=0) to the
SIP provider.
TEL URI
If the trunk has an assigned PSTN telephone number, this field should be
set to "User=Phone". Then a "User=Phone" parameter will be attached to
the Request-Line and TO header in the SIP request to indicate the E.164
number. If set to "Enable", "Tel:" will be used instead of "SIP:" in the SIP
request. The default setting is disabled.
Caller ID
Configure the Caller ID. This is the number that the trunk will try to use
when making outbound calls. For some providers, it might not be
possible to set the CallerID with this option and this option will be
ignored.
CallerID Name
Configure the name of the caller.
From Domain
Configure the actual domain name. This can be used to override the