ONT stands for Optical Network Terminal. An ONT also called “fiber box” or “modem” is an outlet to the Internet for fiber technology, just like a cable modem is an outlet for a coaxial cable Internet connection. In your fiber network, the ONT communicates with your Internet Service Provider (ISP) and converts the signal from optical to electrical and vice versa. With the fiber router in your house or apartment, you can then get and distribute a Wi-Fi signal to all your devices.
