Do I need the telephone line plugged in

We dont use a home phone anymore but we still have the telephone line plugged into the Gateway.  The gateway is currently in our basement and am thinking about moving it to our main floor so the wifi connection is better throughout the house.  Where we have our tv in our livingroom where i am thinking of moving it but there isnt a telephone outlet near it.  Does the telephone line have to be plugged into the gateway for the rest of our services to work?