Grandstream HT812 Analog Telephone Adapter

The HT812 is a powerful analog telephone adapter designed for users looking to connect their analog devices to a VoIP network in either a home or office. It offers an advanced 2-port analog telephone adapter (ATA) with 2 FXS ports and an integrated Gigabit NAT router.

The HT812 is an easy-to-use 2-port analog telephone adapter (ATA) with 2 FXS ports and an integrated Gigabit NAT router. Built upon Grandstream’s market-leading SIP ATA/gateway technology with millions of units successfully deployed worldwide, this powerful ATA features exceptional voice quality in various application environments, strong encryption with unique security certificate per unit, automated provisioning for volume deployment and device management, and outstanding network performance for home and office use. The HT812 delivers outstanding 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.

 

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

(HT812)

Interfaces
Telephone Interfaces: Two (2) 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, TELNET, 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, TELNET, TFTP, TR-069 , secure and automated provisioning using AES encryption, syslog
Security
Media: SRTP
Control: TLS/SIPS/HTTPS
Management: Syslog support, telnet, 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) Weight: 353.33g
 
SKU HT812
Barcode # 6947273702153
Brand Grandstream
Shipping Weight 0.5000kg
Shipping Width 0.150m
Shipping Height 0.060m
Shipping Length 0.190m
Shipping Cubic 0.001710000m3
Manufacturer Warranty
1 Year Limited Warranty

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