Not without paying for the phone call it ain't. If you're on xp, then you can add windows fax via the control panel. I haven't done this for years, but if you search on add or remove windows features, you'll find it easily enough.
Of course you need a modem in the pc & then to hook that up to a phone line & you'll be away. I have used my pc to fax for years & it works faultlessly. This is just what comes with Windows, I am sure there are no end of third party apps for the same thing. A search seems in order.