Grandstream HT814 is an advanced 4-port FXS IP gateway with 2 Gigabit Ethernet ports and an integrated NAT router. Built upon Grandstream’s market-leading SIP ATA/gateway technology with millions of units successfully deployed worldwide, this powerful gateway features exceptional voice quality in various application environments, strong encryption with unique security certificate per unit, automated provisioning for volume deployment & device management as well as outstanding network performance for home and office use.