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Grandstream HT812 ATA Router

£48.49inc VAT

Grandstream HT 812 VoIP Adaptor Rear
Grandstream HT 812 VoIP Adaptor Top
Grandstream HT 812 VoIP Adaptor
Grandstream HT 812 VoIP Adaptor
Grandstream HT 812 VoIP Adaptor

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*Subject to availability. Next business day only.

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Grandstream HT812 2 Port VoIP Analogue Telephone Adaptor and Router

The HT812 is a powerful analogue telephone adapter designed for users looking to connect their analogue devices to a VoIP network in either a home or office. It offers an advanced 2-port analogue telephone adapter (ATA) with 2 FXS ports and an integrated Gigabit NAT router.

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Availability: 15 In Stock

Want it by tomorrow, 25th September? Order within 4 hours 41 minutes and choose Saturday Delivery at checkout for next day delivery.


Manufacturer Part Number: HT812

  • Description

  • Documents

Grandstream HT812 ATA Router

The HT812 is an easy-to-use 2-port analog telephone adapter (ATA) with 2 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 ATA features exceptional voice quality in various application environments, 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. The HT812 delivers outstanding 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.

HT 812 Key Highlights

  • 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

What's in the Box?

  • HT812 Telephone Adapter
  • UK Power Adapter
  • Ethernet Cable
  • Quick Installation Guide
  • GPL Statement