Description

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

(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 #	6947273705321
Brand	GRANDSTREAM
Shipping Weight	0.5000kg
Shipping Width	0.100m
Shipping Height	0.050m
Shipping Length	0.150m
Shipping Cubic	0.000750000m3