2-Port ATA with Gigabit NAT Router – HT812
Connect your existing analog telephones to SIP-based VoIP services with the Grandstream HT812, a compact 2-port ATA offering HD audio and enterprise-grade security.
Description
The Grandstream HT812 is a 2-port analog telephone adapter that converts analog phone signals to SIP/VoIP, allowing businesses and home users to connect legacy telephones, fax machines, and alarm systems to modern IP-based phone services.
- 2 FXS ports for connecting analog devices
- 2× Gigabit Ethernet ports (with built-in NAT router supporting up to 100 Mbps routing speeds) for high-speed network connectivity
- HD voice with support for G.711, G.722, G.726, and Opus codecs
- TLS and SRTP encryption for secure voice communications
- T.38 fax-over-IP support for reliable fax transmission
- Automated provisioning via TR-069, XML configuration, or Grandstream GDMS
- Compact design suitable for desktop or wall-mount installation
The HT812 is ideal for small offices, home offices, and remote workers who want to use existing analog phones with cloud-hosted or on-premise VoIP services. Its straightforward setup and broad SIP platform compatibility make it a cost-effective path to unified communications.
Additional information
| Device Management | |
|---|---|
| Network Interfaces | |
| Audio Conferencing | Yes |
| SIP Accounts |
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