Grandstream HT-812 ATA with Router | ProVu Communications

Grandstream HT-812


The Grandstream HT-812 offers users a market-leading SIP ATA/gateway able to successfully connect analogue devices to a manageable VoIP network. Supporting up to 2 SIP profiles via the 2 easy-to-use FXS ports and integrated Gigabit NAT router users can make the most of the Grandstream HT-812 routing speeds of up to 100MBps.

Users can rest assured that the Grandstream HT-812 can keep their data secure with state-of-the-art encryption from TLS and SRTP with a unique security certificate per unit.


  • Supports 2 SIP profiles through 2 FXS ports
  • Dual Gigabit ports
  • Built-in NAT router for 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

Ordering Information


Support & Downloads

Technical details

What's in the box

  • HT812
  • Warranty Disclaimer
  • 1M CAT5e Cable
  • 12V 0.5A UK power adoptor


This product comes with a 1 year manufacturer's warranty.

Media downloads

Grandstream HT-812
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Grandstream HT-812
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