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Grandstream HT813 FXS/FXO 2-SIP ATA Gateway
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Product Overview
The Grandstream HT813 is a versatile 2-SIP Analog Telephone Adapter (ATA) Gateway that seamlessly bridges traditional analog telephony with modern VoIP networks. Designed for businesses and home users seeking reliable voice communications, this device combines both FXS and FXO ports to connect analog phones and PSTN lines to IP-based systems.
Key Features
- Dual Port Configuration: Features 1x RJ11 FXS port for connecting analog phones and 1x RJ11 FXO PSTN line port with lifeline support for backup connectivity
- Integrated NAT Router: 2x 10/100Mbps Ethernet ports (RJ45) provide flexible network connectivity options
- Advanced Voice Compression: Supports multiple codecs including G.711, G.723.1, G.729A/B, G.726-32, iLBC, and Opus for optimal call quality
- Reliable Fax Transmission: T.38 Fax protocol ensures dependable Fax-over-IP with Group 3 Fax Relay up to 14.4kbps and automatic G.711 pass-through
- Comprehensive Telephony Features: Caller ID, call waiting, call transfer (blind/attended), call forward, hold, do not disturb, and 3-way conferencing
- Enterprise-Grade Security: TLS/SIPS/HTTPS for control signaling, SRTP for media encryption, and AES encryption with per-unit security certificates
- Flexible Provisioning: Multiple provisioning methods including HTTP, HTTPS, TFTP, SSH, TR-069, and secure automated provisioning
- Compact Design: Space-saving desktop unit measuring 5.14" x 3.56" x 1.14"
Versatile Business and Home Communication Solution
The Grandstream HT813 provides an ideal solution for businesses transitioning to VoIP while maintaining existing analog equipment investments. The FXS port allows you to connect traditional analog phones or fax machines, while the FXO port with lifeline support ensures continuity by maintaining a connection to the PSTN line during power or network outages. This dual functionality makes it particularly valuable for organizations requiring backup communication capabilities or those operating in hybrid telephony environments. Small businesses, remote offices, and home users will appreciate the device's straightforward deployment and robust feature set that rivals traditional phone systems.
Technical Specifications
- Manufacturer: Grandstream
- Model: HT813
- Network Interfaces: 2x 10/100Mbps RJ45 ports with integrated NAT router
- Telephone Interfaces: 1x RJ11 FXS port, 1x RJ11 FXO PSTN line port
- Voice Codecs: G.711 (Annex I PLC, Annex II VAD/CNG), G.723.1, G.729A/B, G.726-32, iLBC, Opus
- Fax Support: T.38 compliant, up to 14.4kbps with auto-switch to G.711
- Security Protocols: TLS/SIPS/HTTPS, SRTP, AES encryption
- Provisioning Methods: HTTP, HTTPS, TFTP, SSH, TR-069
- Dimensions: 5.14" x 3.56" x 1.14" (W x D x H)
- Mounting: Desktop
Included
- 1x HT813 Analog Telephone Adapter Unit
- 1x Universal Power Adapter
- 1x Ethernet Cable
- 1x Quick Installation Guide
- 1x GPL Statement/License
Why Buy from PC Liquidations
When you choose this Grandstream HT813 ATA Gateway, you're making a smart investment in reliable communication technology backed by a company with over 30 years of industry expertise. Every unit passes our extensive refurbishing and upgrade process, ensuring you receive a fully functional device that meets the highest standards of performance and reliability.
We stand behind every product we sell with comprehensive warranty coverage and a satisfaction guarantee. Whether you're upgrading your business phone system or setting up remote office connectivity, you can purchase with confidence knowing you're getting quality equipment at a competitive price.
New Product
These products are brand new and have never been used. They arrive in the original manufacturer packaging in pristine, factory-fresh condition.
HT813 FXS/FXO 2-SIP ATA Technical Specs
| Manufacturer | Grandstream |
|---|---|
| Model | HT813 |
| Networking Interfaces | 2x 10/100Mbps ports (RJ45) with integrated NAT router |
| # of Telephone Interfaces | 1x RJ11 FXS port 1x RJ11 FXO PSTN line port with lifeline support |
| Voice Compression | G.711 with Annex I (PLC) and Annex II (VAD/CNG), G.723.1, G.729A/B, G.726-32, iLBC, and Opus |
| Fax Support | T.38 Fax for reliable Fax-over-IP; T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through |
| Telephony Features | Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, and 3-way conference |
| Provisioning | HTTP, HTTPS, TFTP, SSH, TR-069, and secure automated provisioning using AES encryption |
| Security | TLS/SIPS/HTTPS for Control, SRTP for Media, and strong AES encryption with a security certificate per unit |
| Dimensions (WxDxH) | 5.14" x 3.56" x 1.14" |
| Mounting | Desktop |
| Included | 1x HT813 Analog Telephone Adapter Unit 1x Universal Power Adapter 1x Ethernet Cable 1x Quick Installation Guide 1x GPL Statement/License |
No-hassle returns. Zero restocking fees.
Wrong item? Changed your mind? Don't need it anymore? We've got you covered.
30-Day Returns
- No restocking fees, ever
- Refund or store credit — your choice
- 30 days from invoice date
- Return in original condition, securely packed
Fast Shipping
- Ships within 2 business days*
- Rush & Saturday delivery available — call us
- Free ground shipping available (continental US orders over $500)
- Overnight delivery available
1-Year Warranty
- Covers defects & functional failures
- Normal business use, from date of purchase
- Batteries: 90 days (consumable)
- Excludes misuse, modification, mishandling
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*Shipping and delivery on business days. Purchaser is responsible for return shipping costs and insurance. Free/fixed shipping offers exclude palletized items — call for freight rates.
