Grandstream HT812 Analog Telephone Adapter

The Grandstream HT812 allows you to successfully connect analog devices to your 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.

PRODUCT TRANSITION NOTICE: The Grandstream HT812 has been discontinued. It has been replaced with the Grandstream HT812 V2. We will be shipping the Grandstream HT812 V2 at the same price.

• 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

• Can be used with a variety of SIP compatible hosted service providers and SIP compatible IP PBX systems
• Check with your hosted provider or IP PBX documentation to confirm system compatibility

• Grandstream HT812 analog telephone adapter
• Power supply
• Network cable

• Grandstream HT812 Datasheet
• Grandstream HT812 Quick Installation Guide