Grandstream HT813 VoIP Gateway - 2 RJ-45 - 1 FXS - 1 FXO - Fast Ethernet
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Product Features
Technical Overview
The HT813 operates as a dedicated VoIP gateway with two RJ-45 network ports supporting 10/100Base-T Fast Ethernet connectivity. The device features one FXS (Foreign Exchange Station) port for connecting analog telephones or fax machines and one FXO (Foreign Exchange Office) port for linking to traditional PSTN lines or analog PBX systems.
This configuration allows simultaneous connection to both IP networks and traditional telephony infrastructure, providing flexibility in deployment scenarios. The gateway does not support Power over Ethernet, requiring separate power via the included adapter for operation.
Relevant factors for this section include PoE (RJ-45) Port, Number of Network (RJ-45) Ports, Number of FXS (RJ-11) Ports, Ethernet Technology. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The Grandstream HT813 offers practical advantages for organizations maintaining mixed telephony environments. Its dual-port architecture supports flexible network configurations while maintaining clear voice transmission between analog and digital domains.
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include Analog-to-IP Conversion, Network Flexibility.
Analog-to-IP Conversion
Enables existing analog phones, fax machines, and door phones to operate on modern VoIP networks without equipment replacement.
- Preserves investment in analog devices
- Maintains familiar user interfaces
- Supports fax-over-IP functionality
Network Flexibility
Two RJ-45 ports provide options for direct connection to network switches or routers with pass-through capability for additional devices.
- Dual-port architecture
- Pass-through connectivity
- Standard Ethernet compatibility
Deployment / Use Cases
The HT813 serves as an ideal solution for small businesses transitioning from traditional phone systems to VoIP services. Its compact size and straightforward installation make it suitable for retail counters, reception desks, or home office setups where space is limited but reliable telephony is essential.
Common deployment scenarios include connecting legacy analog phones to cloud-based VoIP services, integrating fax machines into digital communication systems, and providing backup PSTN connectivity for VoIP phone systems. The gateway's FXO port enables connection to traditional phone lines for failover or hybrid calling configurations.
Small Office Transition
Gradually migrate from analog to VoIP while maintaining existing phone equipment and minimizing disruption to daily operations.
Fax-over-IP Implementation
Connect traditional fax machines to IP networks for document transmission without dedicated analog phone lines.
Physical Profile
Measuring 5.14 inches wide, 3.56 inches deep, and 1.14 inches tall, the HT813 presents a compact footprint suitable for desktop placement or mounting in small equipment enclosures. The lightweight construction at just over 5 ounces ensures easy installation and minimal strain on mounting surfaces. The device's clean, professional appearance blends well with office environments while providing accessible front-panel status indicators for quick visual monitoring.
- Width
- 5.14" (130.50 mm)
- Depth
- 3.56" (90.50 mm)
- Height
- 1.14" (29 mm)
- Weight
- 5.01 oz (142 g)
Highlights
- Connects analog phones to IP networks
- 2 RJ-45 network ports for flexible connectivity
- 1 FXS port for analog telephone/fax connection
- 1 FXO port for PSTN/PBX integration
- Fast Ethernet (10/100Base-T) networking
- Compact desktop form factor
- Lightweight design for easy placement
- Professional-grade voice quality
Specifications
| Specifications | |
|---|---|
| Manufacturer | Grandstream Networks, Inc |
| Manufacturer Part Number | HT813 |
| Brand Name | Grandstream |
| Product Model | HT813 |
| Product Name | HT813 VoIP Gateway |
| Product Type | VoIP Gateway |
| Interfaces/Ports | |
| PoE (RJ-45) Port | No |
| Number of Network (RJ-45) Ports | 2 |
| Number of FXS (RJ-11) Ports | 1 |
| Number of FXO (RJ-11) Ports | 1 |
| Network & Communication | |
| Ethernet Technology | Fast Ethernet |
| Network Standard | 10/100Base-T |
| Power Description | |
| Redundant Power Supply Supported | No |
| Physical Characteristics | |
| Height | 1.14" (29 mm) |
| Width | 5.14" (130.50 mm) |
| Depth | 3.56" (90.50 mm) |
| Weight (Approximate) | 5.01 oz (142 g) |
| Miscellaneous | |
| Country of Origin | China |
FAQ
What is the primary function of the Grandstream HT813 VoIP Gateway?
The HT813 serves as a bridge between traditional analog telephony equipment and modern IP networks. It enables analog phones, fax machines, and other legacy devices to connect to VoIP systems through its FXS port while providing PSTN connectivity via its FXO port. This allows organizations to maintain existing analog equipment while transitioning to digital telephony services.
How many network ports does the HT813 have and what type are they?
The gateway features two RJ-45 network ports that support Fast Ethernet connectivity at 10/100Base-T speeds. These ports enable connection to standard network switches or routers, with one port typically used for network uplink and the other available for pass-through connectivity to additional devices in the same location.
Can the HT813 support Power over Ethernet (PoE)?
No, the HT813 does not support Power over Ethernet. The device requires separate power via the included AC adapter. This means it needs both a network connection and a power outlet for operation, which is typical for compact desktop VoIP gateways in this category.
What is the difference between the FXS and FXO ports on this gateway?
The FXS (Foreign Exchange Station) port connects to analog devices like telephones or fax machines, providing dial tone and ring voltage. The FXO (Foreign Exchange Office) port connects to traditional phone lines or analog PBX systems, allowing the gateway to interface with the public switched telephone network. This dual-port configuration enables bidirectional communication between analog and IP networks.
What are the physical dimensions and weight of the HT813?
The gateway measures 5.14 inches wide, 3.56 inches deep, and 1.14 inches tall, with a weight of approximately 5.01 ounces (142 grams). This compact size makes it suitable for desktop placement in space-constrained environments like retail counters, reception desks, or small office workstations without requiring dedicated rack mounting.
Is the HT813 compatible with major VoIP service providers?
Yes, the Grandstream HT813 is designed to work with standard SIP-based VoIP platforms and is compatible with most major VoIP service providers. The gateway supports essential VoIP protocols and codecs for reliable voice transmission, though specific configuration requirements may vary depending on the service provider's implementation and network setup.
| Qty | Price | Available |
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