Grandstream HT814 4-Port FXS Gateway | Gigabit NAT Router & VoIP ATA
Grandstream HT814: Bridge Your Analog Devices to High‑Speed VoIP Networks
The Grandstream HT814 is a powerful and easy‑to‑use 4‑port analog telephone adapter (ATA) designed to connect traditional analog phones and fax machines to a VoIP network. Built on Grandstream’s market‑leading SIP ATA/gateway technology, it delivers exceptional voice quality, strong encryption with a unique security certificate per unit, and outstanding network performance for both home and office use.
Key Features & Specifications
High‑Capacity Analog Connectivity – Includes 4 FXS ports (RJ11) for connecting analog phones or fax machines. The number of ports can be expanded by peering with an additional FXS gateway.
Built‑in Gigabit NAT Router – Features dual 10/100/1000Mbps RJ45 ports with an integrated NAT router that handles routing speeds up to 100Mbps, eliminating the need for a separate router in small deployments.
2 SIP Profiles – Supports up to 2 SIP profiles, allowing registration to two separate VoIP services or extensions.
Superior Voice & Fax Quality – Supports G.711, G.723.1, G.726, G.729A, G.729B, and iLBC voice codecs. T.38 compliant Group 3 Fax Relay supports Fax‑over‑IP up to 14.4kbps with auto‑switch to G.711 for fax pass‑through.
3‑Way Voice Conferencing – Each port supports 3‑way voice conferencing for small team collaboration.
Advanced Telephony Features – Includes caller ID display/block, call waiting, flash, blind/attended transfer, call forward, hold, do not disturb, and more.
Failover SIP Server – Automatically switches to a secondary server if the main server loses connection, ensuring business continuity.
Strong Security – TLS and SRTP security encryption technology protect calls and accounts. Automated provisioning options include TR‑069 and XML configuration files.
Seamless UCM Integration – Use with Grandstream’s UCM series IP PBXs for zero‑configuration provisioning (Plug‑and‑Play).
GDMS Cloud Management – Compatible with Grandstream Device Management System (GDMS) for free, centralized cloud‑based management including device configuration, firmware upgrades, monitoring, and troubleshooting.
Compact & Lightweight – Ultra‑compact design (130 x 90 x 28.5 mm) weighing only 290g, easily placed on a desktop or mounted on a wall.
Technical Specifications
Frequently Asked Questions
Q1: What is the Grandstream HT814 used for? +
The HT814 is a 4‑port analog telephone adapter (ATA) that connects standard analog phones and fax machines to a VoIP phone system or VoIP service provider. It converts analog signals into digital IP traffic, enabling calls over the internet instead of traditional phone lines.
Q2: How many analog devices can I connect? +
The HT814 has 4 FXS ports, so you can connect up to 4 analog phones or up to 3 phones and 1 fax machine, or any combination.
Q3: Does it have a built‑in router? +
Yes. The HT814 includes a built‑in Gigabit NAT router with dual Gigabit Ethernet ports, capable of routing speeds up to 100Mbps. This eliminates the need for a separate router in small office or home deployments.
Q4: Is the HT814 secure? Are calls encrypted? +
Yes. The HT814 supports TLS and SRTP encryption for SIP signaling and media, protecting calls and account information from eavesdropping.