Grandstream HT812 2-Port FXS Gateway with NAT Router

The Grandstream HT812 2-Port FXS Gateway with NAT Router is a technologically advanced device that caters to comprehensive IP-based voice and data networking. It ingeniously combines the functionality of a voice-over IP gateway with a NAT router to enable versatile and far-reaching connectivity for businesses and homes alike. Equipped with dual FXS ports, the Grandstream HT812 supports up to two SIP profiles and includes a built-in NAT router, offering powerful VoIP functionality. These dual FXS ports permit direct analog telephone or fax machine connection, thereby transforming traditional communication devices into networked resources. This device is furnished with an integrated high-performance NAT router, operating at impressive speeds that accommodate even the most demanding traffic.

The NAT router feature offers full-fledged routing capabilities, which means it does not just redirect, but also filters, translates, and manages IP addresses to enable secure Internet connectivity. The Grandstream HT812 boasts automated provisioning capabilities using symmetric RTP for enhanced carrier-grade line echo cancellation.

Furthermore, it provides 3-way voice conferencing for efficient communication. Security-wise, this gadget offers an exceptional security shield via SRTP, TLS, and HTTPS encryption. This secure provisioning protects against service theft and unauthorized access, keeping your data safe. Additional features include advanced telephony features such as caller ID, call waiting, 3-way conference calls, transfer, forward, do not disturb and message waiting indicator. It also supports T.38 Fax for creating Fax over IP and comprehensive voice codecs including G.711 with Annex I/II, G.723.1, G.729A/B, G.726, iLBC.

Telephone Interfaces

• Two FXS Ports: Provides connection for two analogue telephones, offering reliable voice services.
• Network Connectivity: Includes two 10/100/1000Mbps RJ45 ports, ensuring high-speed and versatile network integration.

User-Oriented Interface and Indicators

• LED Indicators: Easy-to-understand indicators for POWER, LAN, WAN, PHONE1, and PHONE2 for quick status checks.
• Convenient Factory Reset Button: Allows for easy factory resets and troubleshooting.

Enhanced Voice, Fax, and Modem Support

• Telephony Features: Supports Caller ID, call waiting, call transfer, forward, hold, do not disturb, and 3-way conference for comprehensive telephony functionality.
• Wide Range of Voice Codecs: Includes G.711, G.723.1, G.729A/B, G.726, iLBC, and OPUS with advanced features like dynamic jitter buffer and echo cancellation for superior voice quality.

Reliable Fax over IP

• T.38 Fax Compatibility: Ensures reliable Group 3 Fax Relay up to 14.4kbps and seamless transition to G.711 for Fax Pass-through.

Optimized Signaling and Networking

• Versatile Network Protocols: Supports a broad range of protocols including TCP/IP, UDP, RTP/RTCP, SIP over TCP/TLS, and more for flexible network configurations.
• Advanced QoS Management: Features Layer 2 and Layer 3 QoS for prioritized network traffic, ensuring quality communication.

DTMF and Provisioning

• Flexible DTMF Methods: Offers in-audio, RFC2833, and SIP INFO options for DTMF signalling.
• Secure and Automated Provisioning: Supports HTTP, HTTPS, TELNET, TFTP, and TR-069 with AES encryption for secure and convenient device setup.

Robust Security and Management

• Media and Control Security: Implements SRTP and TLS/SIPS/HTTPS for secure communication.
• Efficient Management Tools: Includes syslog support, telnet, and remote management via web browser for easy administration.

Physical Specifications and Environmental Tolerance

• Universal Power Supply: Adaptable power input range with a 12V/0.5A output for diverse electrical environments.
• Compact and Lightweight Design: Measures 28.5 x 130 x 90 mm and weighs 353.33g, making it suitable for various installation environments.
• Optimal Operating Conditions: Designed to function effectively in a wide range of temperatures and humidity levels.