Used with all parts.The Alcatel Verizon FiOS TV Internet Optical Network Terminal ONT I-211M-L modem is a modem designed for home networking and connectivity. It is specifically designed to work with Verizon's FiOS TV service, providing high-speed internet access. With its optical network terminal capabilities, this modem allows users to connect to the internet via fiber-optic technology, ensuring fast and reliable connections for a variety of devices. The Alcatel brand is known for its quality networking products, making this modem a reliable choice for users looking to enhance their home internet experience.