Skip to Content
  • Delivery in 4–10 working days across Saudi Arabia
  • A tax invoice with every order
  • Technical support before and after you buy

Grandstream HT812 V2 2-Port FXS ATA with Gigabit NAT Router, T.38 Fax, TR-069

Part number HT812 V2
  • Supports 2 SIP profiles through 2 FXS ports and dual Gigabit ports
  • Built-in NAT router which can handle routing speeds up to 100Mbps
  • TLS and SRTP security encryption to protect calls and accounts; strong AES encryption with security certificate per unit
  • Automated provisioning options include TR-069 and XML config files
  • 3-way voice conferencing per port
  • Failover SIP server automatically switches to secondary server if main server loses connection
  • Supports T.38 Fax for creating Fax-over-IP
  • Use with Grandstream's UCM series of IP PBXs for Zero Configuration provisioning
Price
⃁ 230.63 ⃁ 230.63 ⃁ 300.30 Save 23%
⃁ 230.63 ⃁ 300.30
(Tax excluded)
  • Delivery within 4–10 business days across Saudi Arabia
  • Warranty according to the manufacturer
  • Tax invoice with every order
  • Technical support before and after purchase

Not sure this model fits your setup? Read the buying guide

Overview of Grandstream HT812 V2

The Grandstream HT812 V2 is an advanced 2-port analog telephone adapter (ATA) with 2 FXS ports and an integrated Gigabit NAT router. Built on Grandstream's SIP ATA/gateway technology, it brings existing analog phones and fax machines onto a VoIP network with exceptional voice quality and wideband HD codec support. Strong encryption with a unique security certificate per unit, automated provisioning via TR-069 and XML for volume deployment, T.38 Fax-over-IP and 3-way conferencing per port make it a practical choice for small offices, clinics, villas and retail shops that want to keep their analog handsets or fax while moving to an IP PBX or hosted VoIP service.

Technical Specifications – Grandstream HT812 V2

Interfaces

Lines2 lines
Telephone InterfacesTwo (2) RJ11 FXS ports; can be expanded by peering with an FXS gateway
Network InterfacesTwo (2) 10/100/1000Mbps RJ45 ports
LED IndicatorsPOWER, NET1, NET2, PHONE1, PHONE2
Factory Reset ButtonYes

Voice, Fax, Modem

Audio Conferencing3-Way Voice Conferencing Per Port
Telephony FeaturesCaller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference
Voice CodecsG.711 with Annex I (PLC) and Annex II (VAD/CNG), G.722, G.723.1, G.729A/B, G.726-32, iLBC, Opus, dynamic jitter buffer, advanced line echo cancellation
Fax Over IPT.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through
Short/Long Haul Ring Load3 REN, up to 1km on 24AWG line
Caller IDBellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
Dial MethodsDTMF, Pulse
Disconnect MethodsBusy Tone, Polarity Reversal/Wink, Loop Current

Signaling

Network ProtocolsTCP/IP/UDP, RTP/RTCP (RFC1889, 1890), HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, SSH, Telnet, STUN (RFC3489, 5389), SIP (RFC3261), SIP over TCP/TLS, SRTP, SNMP, TR-069, IMS/3GPP, IPoE
QoSLayer 2 (802.1Q VLAN, SIP/RTP 802.1p) and Layer 3 (ToS, Diffserv, MPLS), Traffic Shaping
DTMF MethodIn-audio, RFC2833 and/or SIP INFO
Provisioning and ControlHTTP, HTTPS, SSH, TFTP, TR-069, secure and automated provisioning using AES encryption, syslog

Security

MediaSRTP
ControlTLS/SIPS/HTTPS, SDP (RFC 2327), Refer (RFC 3515), Offer/Answer (RFC3265), SIP V2.0 (RFC 3261, 3262, 3264), ETC (3GPP TS 24.629, RFC 3515, RFC 3891, RFC 3892), SIP Session Timer (RFC 4028)
ManagementSyslog support, SSH, remote management using web browser

Physical

Universal Power SupplyInput: 100-240VAC, 50-60Hz; Output: 12V/0.5A
EnvironmentalOperational: 32º – 123ºF or 0º – 50ºC; Storage: 14º – 140ºF or -10º – 60ºC; Humidity: 10 – 90% Non-condensing
Dimensions28.5 x 130 x 90 mm (H x W x D)
Weight353.33g
ComplianceFCC/CE/RCM, K.21

Source: Grandstream official website and datasheet. Specifications are subject to change by the manufacturer.