Powerful 2-port ATA with Gigabit NAT Router HT812 The HT812 is an advanced 2-port analog telephone adapter (ATA) with 2 FXS ports and an integrated Gigabit NAT router. Built upon Grandstream’s market-leading SIP ATA/gateway t...

Powerful 4 port FXS Gateway with Gigabit NAT Router HT814 The HT814 is an advanced 4-port VoIP gateway with 4 FXS ports and an integrated Gigabit NAT router. Built upon Grandstream’s market-leading SIP ATA/gateway technolog...

Powerful 8 port FXS Gateway with Gigabit NAT Router HT818 The HT818 is a powerful 8-port VoIP gateway with 8 FXS ports and an integrated Gigabit NAT router. Built for users looking for a strong analog-to-VoIP converter, it fe...

High-Density, Gigabit Gateways GXW4200 series The GXW4200 high-density FXS gateway series enables businesses of all sizes to create a cost-effective hybrid IP and analog telephone system that offers the benefits of VoIP commu...