The Grandstream HT814 v2 is a versatile VoIP gateway and integrated Gigabit NAT router designed to bring modern internet telephony to traditional phone systems. By providing four FXS ports, it allows you to connect up to four analog phones, making it a practical choice for small offices or homes that want to transition to digital calling without replacing their existing hardware. Connectivity is handled by two 10/100/1000 Mbps network ports, ensuring that your voice traffic and data move efficiently through the network. To help manage your communications, the device supports useful features like call waiting, call forwarding, and three-way conferencing. The black unit is compact, measuring 28.5 x 130 x 90 mm and weighing about 353 grams, so it fits easily on a desk or shelf. It operates within a temperature range of 0 °C to 50 °C and is powered by a 12V/0.5A supply, with simple power and reset buttons and LED indicators to keep you informed of its status.