New to E Metrotel. Just got a UCx50 Demo kit. Got SIP extensions working as well as Nortel 1120 set. Now trying to set up SIP trunking to local carrier but there is only 1 LAN port on the box. I have left it at default for my testing purposes to simulate a customer LAN. MY SIP provider says I need to use address 10.116.0.128 to terminate the SIP trunk. I know that this box does SIP trunking so how do you configure it? The documentation I am looking at does not address it. Any help would be much appreciated.