PRODUCT SPECIFICATIONS
Grandstream HT812 Powerful 2-port ATA with Gigabit NAT Router
The HT812 is an advanced 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.
Key Features
- Supports 2 SIP profiles and 2 FXS ports
- Strong AES encryption with security certificate per unit
- Automated & secure provisioning options using TR069
- 3-way voice conferencing per port
- Exceptional voice quality with wideband HD codec
- Supports T.38 Fax for reliable Faxover-IP
- Supports dual Gigabit network ports
- High performance NAT router
Technical 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
- Telephone 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
- Media SRTP
- Control TLS/SIPS/HTTPS
- Management Syslog support, telnet, remote management using web browser
More Information
MFRPartNum:
HT812
Datasheet:
