Settings/Sip/Network - Grandstream Networks GVC3200 Administration Manual

It is used to configure the SIP server subscriber's name (optional) that will be used for
Display Name Caller ID display. The configured content will be included in the From, Contact and P-
Preferred-Identity headers of SIP INVITE message.
If the device 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
Tel URI
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 "Disable".

Settings/SIP/Network

Parameters Descriptions
It is used to configure the IP address or the Domain name of the Primary Outbound
Proxy, Media Gateway, or Session Border Controller. It's used by the device for
Outbound Proxy
Firewall or NAT penetration in different network environments. If a symmetric NAT is
detected, STUN will not work and ONLY an Outbound Proxy can provide a solution.
It is used to configure the IP address or the Domain name of the Secondary Outbound
Secondary
Proxy, Media Gateway, or Session Border Controller. The device will try to connect
Outbound Proxy
the Secondary outbound proxy only if the primary outbound proxy fails.
It is used to set which DNS service will be used to look up IP address for SIP server's
hostname. It can be selected from the dropdown list:
•
•
DNS Mode
•
If the device needs DNS SRV resource, in which case the DNS server responds with
more than one result, it should be set to "SRV" or "NATPTR/SRV". The default setting
is "A Record".
It is used to configure the NAT traversal mechanism used on the device. It can be
selected from the dropdown list:
•
•
•
NAT Traversal
•
•
•
•
If the outbound proxy is configured and used, it can be set to "NAT NO".
A Record
SRV
NATPTR/SRV.
NAT NO
STUN
Keep-alive
uPnP
Auto
VPN
TURN
GVC3200/3202 Administration Guide
Version 1.0.3.64
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