The HT814 is an advanced VoIP gateway with four FXS ports, two Gigabit network ports and an integrated NAT router. It is built on Grandstream's market-leading VoIP gateway technology. Millions of such devices have been successfully deployed worldwide. This high-performance VoIP gateway features exceptionally high audio quality, powerful encryption with security certificates unique to each device, an automatic remote configuration function for mass deployment and device management, and extremely powerful networking features for home and office applications.