VoIP-gateway Grandstream Networks HT814 v2

The Grandstream HT814 V2 is a 4-port VoIP gateway with four FXS ports and an integrated Gigabit NAT router. Built on Grandstream’s SIP ATA/gateway platform, the HT814 V2 delivers reliable voice connectivity for home and small office environments, supporting multiple codecs and fax modes while providing secure remote provisioning and strong network performance.

Advantages

The device supports common voice codecs including G.711, G.729ab and OPUS, offers T.38 fax compatibility, and includes SIPS/TLS security for encrypted signaling. Each unit contains a unique security certificate, supports automated provisioning for volume deployment and device management, and features a compact, lightweight design with Gigabit NAT routing for stable network throughput.

Suitable for

• Connecting analogue phones or fax machines to SIP-based VoIP services
• Home telephony and small office voice gateways
• Deployments requiring secure remote provisioning and centralized device management

Key specifications

• Ports: 4 FXS ports; 1 Gigabit WAN/LAN (integrated NAT router)
• Supported codecs: G.711, G.729ab, OPUS
• Fax support: T.38
• Protocols: TCP/IP, RTP, DHCP, SIP; security: SIPS, TLS
• Power: AC 100–240 V
• Dimensions: 130 x 90 x 28.5 mm
• Weight: 0.29 kg
• Colour: Black
• Manufacturer model: HT814 V2 (MPN)

How to use

Install the HT814 V2 near your network router and connect the WAN/LAN Gigabit port to your network. Plug analogue telephones or fax machines into the FXS ports and connect power. Access the web GUI to configure SIP account settings, codec preferences, and security options or use automated provisioning to apply bulk settings. Verify network and call quality after configuration and save settings to the device.

Recommendations

Use a stable broadband connection and place the gateway near the router for optimal performance. Enable SIPS/TLS and keep provisioning credentials secure. For fax transmission, enable T.38 and test with the receiving endpoint before full deployment.