Built for users looking for a strong analog to VoIP converter the HT818 is a powerful 8 port VoIP gateway with 8 FXS ports and an integrated Gigabit NAT router. It features Grandstream s market leading SIP ATA/gateway technology with millions of units successfully deployed worldwide. This powerful gateway carries exceptional voice quality in various application environments strong encryption with unique security certificate per unit automated provisioning for volume deployment and device management and outstanding network performance for enterprise use.