---
product_id: 103437197
title: "Networks HT818 VoIP telephone adapter"
brand: "grandstream"
price: "NT$10689"
currency: TWD
in_stock: true
category: "Grandstream"
url: https://www.desertcart.tw/products/103437197-networks-ht818-voip-telephone-adapter
store_origin: TW
region: Taiwan
---

# Gigabit NAT router with 1000 Mbps throughput 8 FXS ports for multi-line connectivity Strong AES encryption with unique security certificate Networks HT818 VoIP telephone adapter

**Brand:** grandstream
**Price:** NT$10689
**Availability:** ✅ In Stock

## Summary

> 📞 Secure your voice, amplify your network — the HT818 means business.

## Quick Answers

- **What is this?** Networks HT818 VoIP telephone adapter by grandstream
- **How much does it cost?** NT$10689 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/103437197-networks-ht818-voip-telephone-adapter)

## Best For

- grandstream enthusiasts

## Why This Product

- Trusted grandstream brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-Line Mastery:** Connect up to 8 analog phones seamlessly with 8 FXS ports, perfect for dynamic office setups.
- • **Rock-Solid Security:** Each unit features AES encryption and a unique security certificate to keep your communications ironclad.
- • **Crystal Clear Conferencing:** Host 3-way voice conferences per port, empowering collaboration without compromise.
- • **Effortless Scale & Control:** Automated TR-069 provisioning streamlines deployment and management across your enterprise network.
- • **Enterprise-Grade Performance:** Integrated Gigabit NAT router delivers blazing 1000 Mbps speeds for flawless VoIP and network traffic.

## Overview

The Grandstream HT818 is a robust 8-port VoIP telephone adapter combining advanced SIP gateway technology with enterprise-grade security and network performance. Featuring 8 FXS ports, strong AES encryption with unique certificates, automated provisioning via TR-069, and a built-in Gigabit NAT router, it ensures crystal-clear voice quality and seamless multi-line connectivity for professional environments.

## Description

The HT818 is a powerful 8-port VoIP gateway with 8 FXS ports and an integrated Gigabit NAT router. Built for users looking for a strong analog-to-VoIP converter, it features Grandstream’s market-leading SIP ATA/gateway technology with millions of units successfully deployed worldwide. This powerful gateway carries exceptional voice quality in various application environments, strong encryption with unique security certificate per unit, automated provisioning for volume deployment and device management, and outstanding network performance for enterprise use.

## Features

- Supports 2 SIP profiles and 8 FXS ports
- Strong AES encryption with security certificate per unit
- Automated & secure provisioning options using TR069
- 3-way voice conferencing per port
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07B6TL7N6 |
| Antenna Location | Business |
| Antenna Type | Internal |
| Best Sellers Rank | 110,308 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 54 in VoIP Telephone Adapters |
| Box Contents | [8 ports FXS, as Networking Router components] |
| Brand Name | Grandstream |
| Colour | Black |
| Compatible Devices | Personal computer, laptop |
| Connectivity Protocol | SIP, IP |
| Connectivity Technology | Ethernet, Wi-Fi |
| Control Method | Touch |
| Controller Type | App Control |
| Customer Reviews | 4.7 4.7 out of 5 stars (89) |
| Data Transfer Rate | 1000 Megabits Per Second |
| Frequency Band Class | Dual-Band |
| Has Internet Connectivity | Yes |
| Is Electric | Yes |
| Is Modem Compatible | No |
| Item Weight | 500 Grams |
| LAN Port Bandwidth | 1000 Mbps |
| Manufacturer | Grandstream |
| Manufacturer Part Number | HT818 |
| Maximum Upstream Data Transfer Rate | 1000 Megabits Per Second |
| Model Name | HT818 |
| Model Number | HT818 |
| Number of Antennas | 1 |
| Number of Ports | 8 |
| Operating System | Windows |
| Other Special Features of the Product | WPS |
| Router Firewall Security Level | Advanced |
| Router Network Type | hybrid |
| Security Protocol | WPA2-PSK |
| Smart Home Compatibility | Not Smart Home Compatible |
| UPC | 694727370241 753459298497 |
| Unit Count | 1.0 count |
| Voltage | 110 Volts, 220 Volts |
| Wi-Fi Generation | Wi-Fi 4 |
| Wireless Compability | 802.11g |

## Product Details

- **Brand:** Grandstream
- **Colour:** Black
- **Compatible devices:** Personal computer, laptop
- **Connectivity technology:** Ethernet, Wi-Fi
- **Frequency band class:** Dual-Band
- **Included components:** [8 ports FXS, as Networking Router components]
- **Model name:** HT818
- **Recommended uses for product:** Business
- **Special feature:** WPS
- **Wireless communication standard:** 802.11g

## Images

![Networks HT818 VoIP telephone adapter - Image 1](https://m.media-amazon.com/images/I/61+x+ztuLRL.jpg)

## Questions & Answers

**Q: Does this have a built in firewall?**
A: No

**Q: Can the ethernet ports be used in bridge mode instead of nat mode? if so can they bridge traffic at a full 1gbps?**
A: I don't know why you would want to set it up in bridge mode, except for maybe a 1ms reduction in latency for SIP calls, while slowing down your main networks traffic, via a new choke point. Also the reason you can't use this in bridge mode is it would require it's own IP Address, and your router would need one too, most ISPs won't let you use 2 IPs from the same connection. Now a bridge mode where it uses the same IP from your ISP is possible, but that would still be using some NAT for it's self and your router. If you attach this straight to your router and  main network, bypassing this ATAs NAT firewall, you wouldn't be increasing latency by any noticeable amount, nor adding another choke point, and you won't be adding to a complicated mess of cables. If you just run an Ethernet cable from your routers LAN port to the Internet port on this, and it should work as long as you have its IP Configuration setting to be DHCP or Automatic, which should be the default. You may need to forward some ports in your router though, but the service provider your using should tell you if you need to and how to set it up and what to enter in.

By the way I do not own one of these ATAs but have done a very high level of research on these types of ATAs, and have been working on Small Business/Large Scale Home IT networking for the past 4-6 years.

**Q: Does this device work with fax machines using itu-t super g3?**
A: Yes, the Grandstream HT818 supports fax machines using ITU-T Super G3 protocol. The device is designed to support T.38 fax relay, which is an industry-standard protocol for sending faxes over IP networks.

**Q: Can this unit power the rj11 fxs ports to power analog phones?**
A: The data sheet lists a Ring Equivalence Number (REN) of 2 so it should be able to ring up to 2 analog phones simultaneously.

## Frequently Bought Together

- Grandstream VoIP Gateway 8-Port FXS with Gigabit NAT Router (HT818)
- Grandstream GS-HT814 4 Port Ata with 4 Fxs Ports and Gigabit NAT Router Voip Phone and Device, Black
- Grandstream 2-FXS Port Analog Telephone Adapter (HT802)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-09-05*