Grandstream HT812 v2 Analog Telephone Adapter

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
LED Indicators – POWER, NET1, NET2, PHONE1, PHONE2
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

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Here are the detailed specifications for the Grandstream HT812 v2 Analog Telephone Adapter (ATA):

Grandstream HT812 v2 – Key Specifications

Hardware Interfaces

FXS Ports: 2 RJ11 ports for analog telephone connections
Network Ports: 2 Gigabit Ethernet ports (1 WAN, 1 LAN)
LED Indicators: Power, LAN, WAN, Phone1, Phone2
Factory Reset Button: Yes

Voice & Telephony Features

SIP Accounts: Supports 2 SIP profiles
Voice Codecs: G.711 (A-law and μ-law), G.722, G.723.1, G.726-32, G.729A/B, iLBC, OPUS
Fax Support: T.38 Fax-over-IP and G.711 pass-through
Telephony Functions: Caller ID display/block, call waiting, call transfer (blind/attended), call forwarding, call hold, do not disturb (DND), 3-way conferencing
Echo Cancellation: Advanced line echo cancellation
Jitter Buffer: Dynamic jitter buffer

Network & Security

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), Layer 3 (ToS, DiffServ, MPLS)
Security: TLS and SRTP encryption for secure voice communication
Provisioning: Supports TR-069 and XML configuration files for automated provisioning

Power & Environmental

Power Supply: Input: 100-240V AC, 50-60Hz; Output: 12V DC, 0.5A
Dimensions: Approximately 28.5 x 130 x 90 mm (H x W x D)
Weight: Approximately 353g
Operating Temperature: 0°C to 50°C
Humidity: 10% to 90% (non-condensing)

Compliance

FCC, CE, UL certifications

Key Features

Supports 2 SIP profiles through 2 FXS ports
Integrated Gigabit NAT router with 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

MAECENAS IACULIS

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Grandstream HT812 v2 Analog Telephone Adapter