The Grandstream HT812 is a compact analog telephone adapter (ATA) with two FXS ports and built-in NAT router functionality. It allows analog phones and fax machines to connect seamlessly to modern SIP-based VoIP systems, offering reliable performance, strong security, and easy remote management — ideal for home offices and small businesses.
57.40€
Specifications:
Telephone Ports: 2 × FXS ports (for analog phones)
Network Interface: 2 × RJ-45 Gigabit Ethernet ports (10/100/1000 Mbps) – used as WAN and LAN
VoIP Profiles: Supports up to 2 SIP profiles
Security: TLS and SRTP encryption with unique security certificate per device
Provisioning & Management: TR-069, XML configuration, web-based GUI, SSH, and TFTP support
Fax Support: T.38 Fax over IP with fallback to G.711 codec
Voice Codecs Supported: G.711, G.722, G.726, G.729, iLBC, and Opus
Protocols: SIP (RFC 3261), TCP/UDP/RTP
Power Supply: 12V DC, 1A
Dimensions: 117 × 90 × 30 mm
Weight: 0.25 kg
Operating Temperature: 0°C to 40°C
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