I have a Panasonic KX-NCP500 here with a virtual SIP trunk to another PBX. I'm trying to program it so I can make a trunk group and assign it to the SIP channel. For example I can dial 8 then the trunk group then the external PBX extension number IE 802204( Meaning the 204 is the extension I'm trying to reach) I'm not sure if I am asking the correct question to accomplish this task as I am new to the Panasonic systems. Thanks!