You need to program form 31 and form 822. The information in form 31 has to be the IP address assigned locally, the WAN address of the NSP/Cabinet/IVC and the correct UDP ports and MAC address of each phone.

Form 822 has to have the IVC with it's own local IP address, Gateway address, WAN address, MAC address and it's own unique UDP port.

The router for the network has to have open UDP ports for the IVC.

Rcaman


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