The Command Communications ComSwitch 5500 Phone Fax Modem is a 3-port call switch designed for phone switching and modem capabilities. With an interface including DSL/Phone (RJ-11) and Ethernet (RJ-45), this system allows for efficient communication and connectivity. Manufactured in China, this product offers a reliable solution for managing phone lines and internet connections in a professional setting. Ideal for businesses or home offices needing a versatile and dependable network hub for their communication needs.