Grandstream HandyTone HT812 ATA Voice&Fax-over-IP gateway sa 2 x FXS, 1 GWAN + 1 GLAN, SIP protokol, kodeci G.711(a/u-law), iLBC, G.723, G.729A/B, G.726-32, OPUS, T.38 fax, HTTPS, Encrypted XML, TR-069

Grandstream HandyTone HT812 ATA Voice&Fax-over-IP gateway

The HT812 delivers powerful 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. 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.


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