Grandstream HT812 2-Port ATA with Gigabit NAT Router - 2 FXS Ports - Gigabit Ethernet VoIP Gateway
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Product Features
Technical Overview
The HT812 operates as a VoIP gateway with two FXS (Foreign Exchange Station) RJ-11 ports for connecting analog devices and two RJ-45 Gigabit Ethernet ports for network connectivity. It supports the 10/100/1000Base-T network standard, ensuring compatibility with modern network infrastructure while providing sufficient bandwidth for multiple concurrent VoIP calls and data traffic.
This ATA does not include Power over Ethernet (PoE) capability, requiring separate power provisioning through its included AC adapter. The absence of wireless LAN and SIM card support positions it as a wired-only solution focused on reliability and security in controlled network environments. Management is handled through its Ethernet interfaces without a dedicated management port.
This section brings together practical product details such as PoE (RJ-45) Port, USB, Management Port, SIM Card Supported, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
The HT812 combines essential VoIP gateway functionality with network routing in a single compact device, reducing hardware clutter and simplifying deployment for small business telephony needs. Its dual FXS ports allow simultaneous connection of two analog devices, supporting basic multi-line setups or separate phone and fax configurations without additional adapters.
Integrated NAT Router
Eliminates the need for a separate router in small office environments, providing both VoIP connectivity and basic network routing capabilities through its Gigabit Ethernet ports.
- Simplifies network topology
- Reduces hardware costs
- Consolidates management
Analog Device Support
Enables continued use of existing analog telephones, fax machines, or other FXS-compatible equipment with modern VoIP systems, protecting previous investments in telephony hardware.
- Extends equipment lifespan
- Maintains familiar user interfaces
- Supports legacy devices
Deployment / Use Cases
The Grandstream HT812 is ideal for small businesses, home offices, or branch locations transitioning from traditional analog phone systems to VoIP services. Its compact size and integrated routing make it particularly suitable for environments where space is limited and network simplicity is prioritized over advanced features.
Common deployment scenarios include connecting analog desk phones in small office settings, supporting fax machines for document transmission over IP networks, and providing basic telephony connectivity in retail locations or professional offices. The device can serve as the primary telephony gateway in micro-business environments or as a supplementary adapter in larger organizations with specific analog device requirements.
Small Office Telephony
Deploy as the central telephony adapter for offices with 1-2 analog phone lines, providing VoIP connectivity while maintaining familiar analog handset operation for staff.
Fax-over-IP Solution
Connect traditional fax machines to VoIP networks, enabling document transmission over IP while preserving existing fax hardware and workflows.
Physical Profile
With dimensions of 5.12 inches wide by 3.54 inches deep by 1.12 inches high (130 x 90 x 28.5 mm) and a weight of approximately 353.3 grams, the HT812 maintains a compact desktop footprint that fits easily on office desks, network shelves, or communication equipment racks. The device features a standard black enclosure typical of Grandstream's business telephony products, designed for professional environments without distracting aesthetics.
The HT812 complies with RoHS 2 environmental standards, ensuring reduced hazardous substance content in its construction. Its country of origin is China, with manufacturing adhering to Grandstream's quality control processes for reliable operation in business communication applications.
- Width
- 5.12" (130 mm)
- Depth
- 3.54" (90 mm)
- Height
- 1.12" (28.50 mm)
- Weight
- 353.3 g
Highlights
- 2 FXS RJ-11 ports for analog device connectivity
- 2 Gigabit Ethernet RJ-45 ports with NAT routing
- 10/100/1000Base-T network standard support
- Compact desktop design with small footprint
- Integrated NAT router simplifies network deployment
- Supports traditional analog phones and fax machines
- RoHS 2 environmental compliance
- Wired-only connectivity for enhanced security
Specifications
| Specifications | |
|---|---|
| Manufacturer | Grandstream Networks, Inc |
| Manufacturer Part Number | HT812 |
| Brand Name | Grandstream |
| Product Model | HT812 |
| Product Name | Powerful 2-Port ATA with Gigabit NAT Router |
| Product Type | VoIP Gateway |
| Interfaces/Ports | |
| PoE (RJ-45) Port | No |
| USB | No |
| Management Port | No |
| Number of Network (RJ-45) Ports | 2 |
| Number of FXS (RJ-11) Ports | 2 |
| I/O Expansions | |
| SIM Card Supported | No |
| Network & Communication | |
| Ethernet Technology | Gigabit Ethernet |
| Network Standard | 10/100/1000Base-T |
| Wireless Specifications | |
| Wireless LAN | No |
| Power Description | |
| Redundant Power Supply Supported | No |
| Physical Characteristics | |
| Height | 1.12" (28.50 mm) |
| Width | 5.12" (130 mm) |
| Depth | 3.54" (90 mm) |
| Weight (Approximate) | 353.3 g |
| Miscellaneous | |
| Country of Origin | China |
| Environmentally Friendly | Yes |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) 2 |
FAQ
How many analog phones can I connect to the HT812?
The Grandstream HT812 provides two FXS RJ-11 ports, allowing direct connection of up to two standard analog telephones, fax machines, or other FXS-compatible devices. Each port supports one analog device, enabling basic multi-line setups or separate phone and fax configurations without requiring additional adapters or expansion hardware.
Does the HT812 support Power over Ethernet (PoE)?
No, the HT812 does not include Power over Ethernet capability. The device requires separate power provisioning through its included AC power adapter. This means you'll need to connect both the Ethernet cables and the power cable during installation, which is typical for desktop ATA devices in this category.
What network speeds does the HT812 support?
The HT812 features Gigabit Ethernet technology with support for the 10/100/1000Base-T network standard. This provides compatibility with modern network infrastructure while delivering sufficient bandwidth for multiple concurrent VoIP calls alongside regular data traffic. The two RJ-45 ports operate at Gigabit speeds for optimal performance in business environments.
Can I use the HT812 as a router for my entire office network?
Yes, the HT812 includes integrated NAT router functionality, allowing it to serve as the primary router for small office networks. With its two Gigabit Ethernet ports, it can handle basic routing tasks while providing VoIP connectivity. However, for larger networks with more complex requirements, additional networking equipment may be necessary alongside the HT812 for telephony-specific functions.
What is the physical size of the HT812?
The HT812 measures 5.12 inches wide by 3.54 inches deep by 1.12 inches high (130 x 90 x 28.5 mm) and weighs approximately 353.3 grams. This compact desktop design ensures easy placement on office desks, network shelves, or in equipment cabinets without occupying significant space, making it suitable for environments where physical footprint is a consideration.
Does the HT812 support wireless connectivity?
No, the HT812 does not include wireless LAN capabilities. It is designed as a wired-only VoIP gateway, which enhances security and reliability by eliminating potential wireless interference issues. All connectivity is provided through its two RJ-45 Ethernet ports, making it ideal for controlled network environments where wired connections are preferred for telephony applications.
What environmental standards does the HT812 comply with?
The HT812 is environmentally friendly and complies with Restriction of Hazardous Substances (RoHS) 2 standards. This means the device is manufactured with reduced levels of specific hazardous materials, aligning with environmental regulations and corporate sustainability goals while maintaining Grandstream's quality and reliability standards for business telephony equipment.
Can I expand the HT812 with additional ports or modules?
The HT812 does not support expansion modules, SIM cards, or additional port expansion. Its configuration is fixed with two FXS ports and two Ethernet ports. For environments requiring more analog connections, multiple HT812 units can be deployed, or you may consider Grandstream's larger ATA models with additional port capacity to meet specific telephony requirements.
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