4.2 Programming the Virtual 16-Channel VoIP Gateway Card
30 Getting Started for Virtual IP Cards
4.2.2 Programming the Address Translation Table
The function of an address translation table in a VoIP network is to provide 2-way translation of telephone
numbers and IP addresses
*1
. Therefore, a caller can reach the destination by dialling the number without
knowing the destination IP address.
The procedure below demonstrates the process of programming the address translation table at the local
PBX. After the address translation table at the local PBX has been fully programmed, repeat the procedure
for the address translation table at the remote PBX with the appropriate setting values.
*1
IP address-to-telephone number translation can also be handled by using an H.323 Gatekeeper device. To configure Gatekeeper devices,
refer to the manufacturer's documentation. This manual focuses on the method using the V-IPGW16 card's internal address translation
capabilities.
1.
a. Under Configuration, click Slot.
b. Move the mouse pointer over the white PBX
image of IPCMPR Virtual Slot at the bottom of
the screen.
c. Click Select Shelf.
d. Move the mouse pointer over the installed V-
IPGW16 card. A menu will be shown under the
mouse pointer.
e. Click Shelf Property.
f. Click GW Settings.
2. In the Main tab, do the following to configure the
gateway entry for the remote PBX:
a. In the GW Name box, type a unique identifier of
the destination in the VoIP network.
b. In the GW IP Address box, type the IP address
of the destination gateway device.
c. In the GW Group box, select None.
Note
Having the value None for GW Group means
that the destination gateway device does not
belong to any gateway group. Grouping is
useful when installing multiple gateway devices
at one location. For details, refer to "2.8.11 [1-1]
Slot—Virtual IP Gateway Shelf Property—GW
Settings—GW Group" in the PC Programming
Manual.
d. Click OK to return to the Shelf Property screen.
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