New Rock Technologies MX8A Series - 2.6.4 IP Table

User Manual HX4E/MX8A Series Voice Gateway
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FXO x ROUTE FXS 1-2/R
Outbound Call Barring
Restrict users to from dialing certain telephone numbers, such as an international call. Examples are as
follows:
Routing Setting
Description
FXS[1] 0 ROUTE NONE
A calling starting with 0 is barred from dialing using the phone set at
FXS1 port
FXS[1-2] 00 ROUTE
NONE
A calling starting with 00 is barred from dialing using the phone set at
FXS1 to FXS2 port.
International call is not allowed.
FXS CPN2 ROUTE
NONE
The telephone whose calling number starts with 2 at a FXS port is
barred to call out.
Trunk Group for Outbound Calls
An outbound trunk group consists of a set of trunks which are used for outbound calling following certain
rules. Here is an example of routing all outbound calls from analog extensions to the trunk group
consisting of ports FXO1 to FXO4 in sequential fashion:
FXS x ROUTE FXO 1-4
Further, we set up the trunk group such that it is used only by calls to destinations with prefix 6120:
FXS 6120 ROUTE FXO 1-4
2.6.4 IP Table
The IP filtering function is used to ignore the VoIP messages from untrusted network.
After login, click Routing > IP Table tab to open the configuration interface.
Figure 2-26 IP Table Configuration Interface
Add the authorized IP addresses to this table, and the gateways will only process the VoIP signaling from
authorized IP addresses. If the IP table is empty, the gateways will not perform IP address-based message
filtering.
If the gateway is deployed in a public network, you are advised to set IP filtering to prevent call theft.