Synway Information Engineering Co., Ltd
SMG-D Series Analog Gateway User Manual (Version 2.0.0)
Page 18
3.4.4 SIP Server
The gateway supports the multi-registrar server feature. Enable the feature of „
Multi-Registrar
Server Mode
‟ on the
interface (see
) and you will see the item SIP Server under the VoIP
Settings menu. Click „
SIP Server
‟ to go into the SIP Server interface. By default, there is no
available SIP server.
Click
to add SIP servers manually. You can configure basic SIP server information on
this interface.
All the items except Index and Description are the same as those on
interface (
).
Item
Description
Index
The index of each SIP server. The gateway supports up to 8 SIP servers.
Description
More information about each SIP server, with the default value of
default
.
After configuration, click
Save
to save the above settings into the gateway or click
Cancel
to
cancel the settings. See Figure 3-4 for the SIP server management interface.
Figure 3-4 SIP Server Management
Click
Modify
in the above figure to modify the configuration of the SIP server. The configuration
items on this interface are the same as those on the
Add New SIP Server
interface.
To delete a SIP server, check the checkbox before the corresponding index in Figure 3-4 and click
the
Delete
button.
Check All
means to select all available items on the current page;
Uncheck
All
means to cancel all selections on the current page;
Inverse
means to uncheck the selected
items and check the unselected. To clear all SIP servers at a time, click the
Clear All
button in
3.4.5 NAT Setting
On the NAT setting interface you can configure the parameters for NAT. After configuration, click
Save
to save your settings into the gateway or click
Reset
to restore the configurations.
The table below explains the items shown on the interface.
Item
Description
Auto Nat
Sets whether to enable the Auto Nat feature. Three options are available:
DisableAutoNat, Enable PMP and Enable UPNP, with the default value of
Auto Nat
.
Outer Network
Address
The address of the outer network acquired automatically once the PMP or UPNP
feature is enabled.
STUN Server
Sets whether to enable the STUN server for NAT traversal. By default the STUN
server is disabled.
NAT Type
Detected NAT (Network Address Translation) type. The gateway will return the NAT
type automatically in case
STUN Server
is enabled. It includes 9 types: unknown;
no NAT; ConeNat; RestrictedNat; PortRestrictedNat; Symmetric NAT; Symmetric