Grandstream HT814 ATA Adapter

Advanced 4-port VoIP gateway with 4 FXS ports and an integrated Gigabit NAT router

Key features
  • 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
£115.19 Incl. VAT
Delivery date with Express Shipping: 04/03/2024 If order placed before 12PM
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Internal ref: GRAHT814UK
Manufacturer part #: HT814
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Product description

Grandstream HT814 ATA Adapter 

The Grandstream HT814 ATA Adapter 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 technology with millions of units successfully deployed worldwide, this powerful gateway features exceptional voice quality in various application environments.

The device also features strong encryption with unique security certificate per unit, automated provisioning for volume deployment and device management, and outstanding network performance for home and office use.


  • Four(4) RJ11 FXS ports
  • Two (2) 10/100/1000Mbps RJ45 ports
  • LED Indicators
  • Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
  • Busy Tone, Polarity Reversal/Wink, Loop Current
  • In-audio, RFC2833 and/or SIP INFO DTMF Method
  • HTTP, HTTPS, SSH, TFTP, TR-069 , secure and automated provisioning using AES encryption, syslog
  • Syslog support, SSH, remote management using web browser
  • Input: 100-240VAC, 50-60Hz 
  • Output: 12V/1.0A
  • 28.5 x 130 x 90 mm (H x W x D) 
  • Weight: 0.29 Kg


Data sheet

Product Specs.

More Information
Manufacturer part #HT814

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