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.

Features:

• 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

Specifications: 

Interfaces

• Telephone Interfaces: Two (2) RJ11 FXS ports

• Network Interfaces: Two (2) 10/100/1000Mbps RJ45 ports

• LED Indicators: POWER, LAN, WAN, PHONE1, PHONE2

• Factory Reset Button: Yes

Voice, Fax, Modem

• Telephony Features: Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference

• Voice Codecs: G.711 with Annex I (PLC) and Annex II (VAD/CNG), G.723.1, G.729A/B, G.726, iLBC, OPUS, dynamic jitter buffer, advanced line echo cancellation

• Fax Over IP: T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through

• Short/Long Haul Ring Load: 3 REN, up to 1km on 24AWG line

• Caller ID: Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID

• Disconnect Methods: Busy Tone, Polarity Reversal/Wink, Loop Current

Signaling

• Network Protocols: TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, SSH, STUN, SIP (RFC3261), SIP over TCP/TLS, SRTP, TR-069

• QoS: Layer 2 (802.1Q VLAN, SIP/RTP 802.1p) and Layer 3 (ToS, Diffserv, MPLS)

• DTMF Method: In-audio, RFC2833 and/or SIP INFO

• Provisioning and Control: HTTP, HTTPS, SSH, TFTP, TR-069 , secure and automated provisioning using AES encryption, syslog

Security

• Media: SRTP

• Control: TLS/SIPS/HTTPS

• Management: Syslog support, SSH, remote management using web browser

Physical

• Universal Power Supply Input: 100-240VAC, 50-60Hz | Output: 12V/0.5A

• Environmental

• • Operational: 32º – 104ºF or 0º – 40ºC

  • Storage: 14º – 140ºF or -10º – 60ºC

  • Humidity: 10 – 90% Non-condensing

• Dimension and Weight: 28.5 x 130 x 90 mm (H x W x D), 353.33g

• Compliance FCC/CE/RCM, K.21

Package Contents:

(1) GSHT812

(1) Ethernet Cable

(1) 12V Power Adapter

(1) Quick Installation Guide

(1) GPL Statement