Can the ethernet ports be used in bridge mode instead of nat mode? if so can they bridge traffic at a full 1gbps?

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.

Does this device work with fax machines using itu-t super g3?

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.

Can this unit power the rj11 fxs ports to power analog phones?

The data sheet lists a Ring Equivalence Number (REN) of 2 so it should be able to ring up to 2 analog phones simultaneously.

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Grandstream Networks HT818 VoIP telephone adapter

Product ID: 103437197

Details

Brand
Grandstream
Colour
Black
Compatible devices
Personal
Connectivity technology
Ethernet Wi-Fi
Frequency band class
Dual-Band
Included components
[8 ports FXS

⚡Gigabit NAT router, 1000 Mbps

📞8 FXS ports for analog phones

🔒AES encryption per unit

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¥53198

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📞 Connect. Secure. Collaborate. Elevate your office voice game.

CONFERENCE LIKE A PRO - 3-way voice conferencing per port empowers dynamic team collaboration without extra hardware.
ENTERPRISE GRADE SECURITY - Strong AES encryption with unique security certificates ensures your calls stay private and secure.
ROBUST MULTI LINE SUPPORT - 8 FXS ports and 2 SIP profiles let you connect multiple analog phones seamlessly for professional-grade communication.
LIGHTNING FAST CONNECTIVITY - Integrated Gigabit NAT router delivers blazing 1000 Mbps data transfer for crystal-clear voice and network performance.
EFFORTLESS LARGE SCALE DEPLOYMENT - Automated and secure provisioning via TR-069 simplifies management across multiple devices, saving you time and hassle.

The Grandstream HT818 is a high-performance 8-port VoIP telephone adapter designed for professional environments. It supports 2 SIP profiles and 8 FXS ports, enabling multiple analog phones to connect over IP with exceptional voice quality. Featuring strong AES encryption with unique security certificates per unit, it guarantees secure communications. The built-in Gigabit NAT router ensures fast and reliable network performance, while automated provisioning via TR-069 streamlines large-scale deployments. Ideal for enterprises seeking robust, scalable, and secure analog-to-VoIP conversion.

Specifications

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

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