The HT812 delivers powerful VoIP technology and routing capabilities to home and office environments, allowing users to connect their analog devices to a manageable VoIP network.
Specify HT812 correctly for your project
This page is specifically for the Grandstream HT812 – Powerful 2-port ATA with Gigabit NAT Router HT812, 2 SIP Profiles, 2 RJ11 FXS Ports, 2 RJ45 Gigabit Ethernet by Grandstream, with ordering reference HT812. Include the complete reference in your RFQ to distinguish it from nearby sizes, colours, connections or editions in the FXS Gateways range.
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Detailed product information
Grandstream HT812 Analog Telephone Adapter Specifications:
Manufacturer:
Grandstream
Model:
HT812
Telephone Interfaces:
Two (2) FXS ports
Can be expanded by peering with an FXS gateway
Network Interfaces:
Two (2) 10/100/1000Mbps RJ45 Ports
LED Indicators:
POWER, LAN, WAN, PHONE1, PHONE2
Factory Reset Button:
Yes
Fax Over IP:
T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through
Short/Long Haul Ring Load:
3 REN, up to 1km on 24AWG line
Caller ID:
Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
QoS:
Layer 2 (802.1Q VLAN, SIP/RTP 802.1p), Layer 3 (ToS, Diffserv, MPLS)
DTMF Method:
In-audio, RFC2833 and/or SIP INFO
Power Supply:
Input: 100-240VAC, 50-60Hz, Output: 12V/0.5A
Telephony Features:
Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference
The HT812 delivers powerful VoIP technology and routing capabilities to home and office environments, and allows users to successfully connect their analog devices to a manageable and powerful VoIP network. Built using Grandstream’s market-leading SIP ATA/gateway technology, with millions of units successfully deployed worldwide, this powerful ATA features exceptional voice quality in various applications and environments. The HT812 comes with 2 easy-to-use FXS ports, an integrated Gigabit NAT router, state-of-the-art encryption with a unique security certificate per unit, automated provisioning for volume deployment and device management and outstanding network performance.
Grandstream HT812 Analog Telephone Adapter Product Features:
Supports 2 SIP profiles through 2 FXS ports and dual Gigabit ports
Includes a built-in NAT router which can handle routing speeds up to 100MBps
TLS and SRTP security encryption technology to protect calls and accounts
Automated provisioning options include TR-069 and XML config files
Supports 3-way voice conferencing
Supports T.38 Fax for creating Fax-over-IP
Supports a wide range of caller ID formats
Use with Grandstream’s UCM series of IP PBXs for Zero Configuration provisioning
Failover SIP server automatically switches to secondary server if main server loses connection
Grandstream HT812 Analog Telephone Adapter Package Contents:
1× HT812
1× Ethernet Cable
1× 12V Power Adapter
1× Quick Installation Guide
1× GPL License
Grandstream HT812 Analog Telephone Adapter Resources:
Grandstream HT812 DataSheet:
Download PDF
Grandstream HT812 Quick Installation Guide:
Download PDF
