I have a D-Link's DVG-1120S (converted from DVG-1120M) Is there one have experience on registered DVG-1120S to 3CX? The connection is : 1. Connect the PSTN phone line to "LINE" port 2. Connect the "LAN" port to my switch I try to see if I can dial from internal to outside with PSTN line. Any one been doing this? Any other way to use this DVG-1120S with 3CX?