menu
close×

    HT812 v2

    Powerful 2-Port ATA with Gigabit NAT Router
    The HT812 v2 is an advanced 2-port analog telephone adapter (ATA) with 2 FXS ports and an integrated Gigabit NAT router.

    • 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
    • LED Indicators - POWER, NET1, NET2, PHONE1, PHONE2
    • Automated provisioning options include TR-069 and XML config files
    • Supports 3-way voice conferencing
    • Failover SIP server automatically switches to secondary server if main server loses connection
    • 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
    Contact Sales
    Product Resources & Documentation
    ...
    ...
    ...
    ...
    ...
    ...

    Grandstream Device Management System

    GDMS provides a FREE centralized interface to provision, manage, monitor and troubleshoot Grandstream products, including device management, account management, device configuration, firmware upgrades, device monitoring, intelligent alarm, and statistical analysis, individually or in batches of devices by site, group and model. This powerful cloud management platform adds robust security features to protect enterprise networks, including bank-grade TLS encryption from end-to-end, two-factor login authentication to protect your data security, two-way certificate verification and encryption of all device information. By offering a centralized, secure and zero-touch management for Grandstream endpoints, GDMS is ideal for enterprises, service providers and multi-site businesses as it allows them to easily deploy and manage large networks of Grandstream solutions. Visit gdms.cloud to sign up for free today!

    Android and iOS mobile users can access the GDMS mobile app from any device by downloading for free through the app store, or get it on google play.

    Sign Up

    Product Comparison

    NameHT812 v2
    SPECS
    LINES 2 lines
    AUDIO CONFERENCING 3-Way Voice Conferencing Per Port
    TELEPHONE INTERFACES Two (2) RJ11 FXS ports; can be expanded by peering with an FXS gateway
    NETWORK INTERFACES Two (2) 10/100/1000Mbps RJ45 ports
    LED INDICATORS POWER, NET1, NET2, PHONE1, PHONE2
    TELEPHONY FEATURES Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference
    FAX OVER IP T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through

    Related Products

    HT841/HT881

    HT841/HT881

    HT841/HT881

    HT841 HT881 1

    • Supports 3 SIP profiles through 1 FXS port and 4/8 FXO ports
    • High-performance NAT router
    • Lifeline support (FXS port will be hard-relayed to FXO port) in case of a power outage
    • 3-way voice conferencing per port
    • Automated & secure provisioning options using TR069
    • Supports T.38 Fax for reliable Fax-over-IP
    • Failover SIP server automatically switches to secondary server if the main server loses connection
    • Strong AES encryption with security certificate per unit
    HT818

    HT818

    HT818

    ht818_angle_web

    • Supports 2 SIP profiles and 8 FXS ports
    • Strong AES encryption with security certificate per unit
    • Automated & secure provisioning options using TR069
    • 3-way voice conferencing per port
    • Exceptional voice quality with wide-band HD codec
    • Supports T.38 Fax for reliable Fax-over-IP
    • Supports dual Gigabit network ports
    • High performance NAT router
    HT814

    HT814

    HT814

    ht814_ports_web

    • Supports 2 SIP profiles through 4 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
    • Failover SIP server automatically switches to secondary server if main server loses connection
    • 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
    HT812

    HT812

    HT812

    ht812_angle_website

    • 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
    • Failover SIP server automatically switches to secondary server if main server loses connection
    • 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