The Vonage VDV21-VD router is a VoIP (Voice over Internet Protocol) router designed for use with Vonage phone service. It features four Ethernet ports, allowing for multiple devices to be connected to the internet through a wired connection, as well as built-in wireless capabilities for wireless connectivity. The router also includes Quality of Service (QoS) technology to prioritize voice traffic for clear and reliable phone calls. It is a compact and easy-to-use device for home or small office use.

The VDV21-VD is a router manufactured by the company Vonage that allows multiple devices to connect to a network and communicate with each other. It works by receiving data packets from devices and forwarding them to their intended destination. The router is assigned a unique IP address , which serves as its identifier on the network.

To access the router's settings and configure its functions, users can log in using a web browser and their and . Once logged in, users can customize various settings such as network name, password, and security protocols. They can also set up parental controls, prioritize bandwidth usage, and monitor network activity.