Assigning extensions, not using the base station.

We would like to NOT use the port on the base station for an extension. Although in the Office Manager it appears that you must assign the base station an extension before you can assign extensions to the Lynx devices. The base station will be housed near the internet router and it will not be easy to route a phone line to the next closest user.

There has to be a way around this, I cant imagine we have to pay for a line that will not be used if the base station jack has to be assigned.