I am trying to setup a simple 4 extension system. I haven't gotten to my PSTN lines and other options just yet. I am trying to provision a Polycom 331. I have the read the instructions, but they are referring to a dhcp console to set option 66. Is this referring to a feature in the 3cx software or a windows based feature. I am running windows 7, and I am not aware of a DHCP server in this version. What to do?