NEC Univerge SV8100 SL1000 Installation Manual page 26

Once the network card has been selected click on the VoIP tab. In the LAN box, enter a LAN mask
for the local network being used multiple entries should be separated by commas. The default
options, for example 10.255.255.255 will cover all devices on a 10.x.x.x network, 192.168.1.255
would cover all devices on a 192.168.1.x network. Also in the LAN box, enter the public IP address of
the internet connection used by the IP trunks. This is usually the Public IP Address of the router
connected to the internet or the device configured as the NAPT router.
In the TSP Gateways box, enter the IP address of the SV8100 / SL and the IP address of the SIP
carrier, separate entries with a comma.
The call recording software will use these IP addresses to determine the direction of the calls. In the
example below, the port mirror is connected to a network card in the PC using the following network
configuration:
IP Address 10.0.0.10, Subnet 255.0.0.0, Default Gateway 10.0.0.1
Using a LAN Mask of 10.255.255.255 will allow communication from an address using a 10.x.x.x
address. The public address that the internet connection is using is 91.85.64.251. The IP address of
the SV8100 / SL in this setup is 10.0.0.100 and SIP carriers address is 81.200.220.123. These are
the two IP entries in the TSP Gateway box. After making any changes click the save button.
To apply the changes, the call recording service has to be restarted, this would mean that any calls
that are currently being recorded will not be recorded. If you click No then the changes will be saved
but will not be applied until the service is restarted. The service can be manually restarted from the
File menu in Sense.