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Grandstream Grandstream Powerful 8-Port FXS Gateway with Gigabit NAT Router (HT818)

Q: 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.

Q: 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.

Q: 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.

4.6/5

Product ID: 329401612

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Details

Brand
Grandstream
Model name
HT818
Special features
WPS
Frequency band class
Dual-Band
Wireless communication standard
802.11ac

⚡Dual Gigabit Ethernet for blazing fast data

🔌8 FXS ports for multi-line connectivity

🔒AES encryption with unique security certificate

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)

Description

📞 Power your professional voice with Grandstream’s ultimate 8-port gateway!

FAX WITHOUT FEAR - Reliable T.38 Fax support guarantees your legacy communications stay intact in the digital age.
MULTI LINE MASTERY - Supports 2 SIP profiles and 8 FXS ports to power your office communications seamlessly.
CRYSTAL CLEAR CALLS - Wideband HD codec and 3-way voice conferencing per port deliver exceptional voice quality and collaboration.
ROCK SOLID SECURITY - Strong AES encryption with individual security certificates ensures your calls stay private and protected.
PLUG PLAY PROVISIONING - Automated, secure TR069 provisioning saves time and hassle for IT pros.

The Grandstream HT818 is a high-performance 8-port FXS gateway featuring dual SIP profiles, dual Gigabit Ethernet ports, and advanced AES encryption. Designed for seamless multi-line voice communications, it supports HD voice, 3-way conferencing, and secure automated provisioning, making it the perfect choice for modern offices demanding reliability and security.

Specifications

Brand	Grandstream
Product Dimensions	9 x 13 x 2.85 cm; 500 g
Item model number	HT818
Manufacturer	Grandstream
Series	HT818
Color	Black
Wireless Type	802.11ac
Number of Ethernet Ports	8
Voltage	110 Volts, 220 Volts
Operating System	RouterOS
Are Batteries Included	No
Item Weight	500 g

Have a Question? See What Others Asked

Does this have a built in firewall?

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

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

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

Common Questions

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TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

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Fantastic experience overall. Will recommend to friends and family.

1 month ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

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Good experience, but the tracking updates could be better.

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