If you have NEVER had fios phone in general, then that means the tech never hooked up the phone to the ONT (main network terminal)
Because of that, you'll need to either Hook up your phone directly into the ONT (there are a couple phone plug ins there, or call Verizon and have them come out to connect your house inside wiring to the ONT box. You can use the Contact Us link and open a live chat, or call Verizon at 1-800-VERIZON
I have no dial tone also. I was away for 3 months and had my phones put on vacation. They were turned on the day I came home but did not have caller ID or voice mail activated. Today I have no dial tone . I am so frustrated. Thank God for cell phones.