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Our last trading day before the holidays is 20th December, and we will reopen on 13th January.
Christmas cut off: The Christmas delivery cut-off date has passed. Delivery before Christmas is not guaranteed. For the best chance of receiving your order in time, please select Express shipping.
Please be advised that our website will undergo maintenance at 5:00 PM. We expect to be back online by 7:00 PM. During this time, the website may not function at full capacity.
Our last trading day before the holidays is 20th December, and we will reopen on 13th January.
Christmas cut off: The Christmas delivery cut-off date has passed. Delivery before Christmas is not guaranteed. For the best chance of receiving your order in time, please select Express shipping.
Please be advised that our website will undergo maintenance at 5:00 PM. We expect to be back online by 7:00 PM. During this time, the website may not function at full capacity.
Our last trading day before the holidays is 20th December, and we will reopen on 13th January.
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Grandstream HT818 FXS ATA 8 Port Voip Gateway
EAN: 6947273705543 SKU: HT818-V2
SHOWROOM NOW OPEN
Visit us at 3/229 Robinsons Road, Ravenhall, VIC
Grandstream HT818 FXS ATA 8 Port Voip Gateway
The HT818 v2 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.
Features:- 8 FXS Ports: Connects up to eight analog phones or fax machines to VoIP services simultaneously.
- Gigabit Connectivity: Includes dual 10/100/1000 Mbps network ports for high-speed performance.
- HD Voice Quality: Supports wideband audio codecs and advanced echo cancellation for clear communication.
- Advanced Security: Features TLS and SRTP encryption for secure voice transmission.
- Failover Support: Includes a lifeline port that automatically switches to PSTN during power or network failures.
- SIP Compatibility: Interoperable with major SIP platforms, softswitches, and IP PBXs.
- Easy Management: Supports TR-069, XML configuration files, and Grandstream Device Management System (GDMS) for remote provisioning.
- High Performance: Equipped with a powerful NAT router and dual firmware images for reliability and redundancy.
- Ports: 8 FXS ports, 2 Gigabit Ethernet ports (RJ45), 1 RJ11 PSTN lifeline port
- Protocols: SIP (RFC 3261), UDP/TCP/TLS, SRTP, HTTP/HTTPS, TFTP, TR-069, IPv4/IPv6
- Voice Codecs: G.711μ/a, G.722, G.723.1, G.726, G.729A/B, iLBC, OPUS, in-band and out-of-band DTMF
- Fax Support: T.38 Fax relay and G.711 pass-through
- Network Features: NAT router, DHCP server/client, QoS, VLAN tagging, DNS SRV, DDNS
- Security: TLS/SRTP encryption, 802.1x authentication, strong password protection
- Management: Web UI, HTTP/HTTPS, TFTP, TR-069, XML provisioning, GDMS support
- Power Supply: 12V DC, 1.5A (external adapter)
- Power Consumption: 6W (typical)
- Operating Temperature: 0°C to 40°C (32°F to 104°F)
- Humidity: 10% to 90% non-condensing
- Dimensions: 158mm × 117mm × 34mm
- Weight: Approx. 340g
- What's in the Box:
- HT818 V2 ATA Unit
- Power Adapter (12V DC)
- Ethernet Cable
- Quick Installation Guide
Great for the price
Works with rotary dial phones the only ATA that will do that that's affordable
D Gilbert, 2025-08-13
on Amazon
Easy to use and highly configurable VoIP gateway
This device is so cool and useful - I actually bought it so that I could add some analog telephones to my house for my daughters so that I can avoid giving them smart phones with a goal toward hooking it up to a VoIP PBX at some future point so that the phones can actually dial out. It works great - my daughters are able to call each others' rooms which is fun and the initial setup is pretty easy. It's a very flexible configurable device. The only thing it's lacking is the ability to disable the lines on a schedule - other than that it works great!
Virtually Nick, 2025-06-04
on Amazon
I've always had good luck with Grandstream devices.
Firmware looks a bit dated but works fine. I was able to connect it to a Asterisk server with no fuss and had a line up quickly. Pulse dialing works but is disabled by default. I was able to send a test fax with no issues. It supports 8 lines across two separate SIP servers. All the lines can be on one SIP server or split between two. Out of the box it just did what I expected it to do I've always had good luck with Grandstream devices. I don't intend to use it as a router other than possible QoS routing complexity I recommend putting it behind another firewall device. But if you're buying a ATA you probably already know all about congestion and QoS.
TJNII, 2025-03-01
on Amazon
Replaced 4 Bell lines with Voip.ms
Monthly phone bill went from $400 to $15. Works great!
N0L1B0, 2024-10-25
on Amazon
8 port Grandstream ATA
Not a cheap purchase however replaced a tired and noisy London 16. Power pack works fine 110-240 vac. Worth it for legacy loop disconnect (dial) telephones. Really easy to set up the parameters needed.
wombat134, 2024-07-24
on Amazon
Works great
As advertised
Amazon Customer, 2024-05-29
on Amazon
Simply the easiest to setup.
We used callcentric as our VOIP service provider and there was good instructions at their website to get the Grandsrteam HT818 setup and going. In addition enough other people own this model there are a other examples on the internet to get this box going with other services as well. There was only one confusing part in the GUI. Where you enable a port was not laid out well and I was actually disabling the ports. Once I upgraded the firmware this was fixed in the latest version and I discovered the mistake. The sound quality is good. We had a Cisco SPA8000 before this box and it literally has crystal clear audio. This is box is a close second so no complaints. The only ding I did not take away a star for this as it is a personal thing the LEDs are all on top of the unit and since we rack mounted this velcroed to a shelf I had to setup a mirror to see the LEDs as the shelf is mounted high in a rack.
Jeffrey Leonard, 2023-04-17
on Amazon
Nice gateway with lots of FXS ports
I bought this product for the 8 port FXS gateway not the router so I can't review that. I'm using the HT818 to replace a Cisco SPA112 that is EOL now. The price is GREAT for 8 ports. Setup is simple fast and easy especially with the t38Fax guides. Right now I have only 2 lines setup on the HT818 (via 1 trunk): 1 line is a voice line through t38Fax with a local area code connected to a cordless phone system. The other line is connected to a standard all-in-one printer with fax machine built in and it works great! This second line also has a local area code. I have two more lines with TFNs connected to Bria Solo (soft phone) and T38 Fax & Voice for a software approach to sending and receiving calls and faxes. I went with a software fax so I don't need a seperate physical fax machine to carry around. It's super handy. The HT818 I received did not have the latest firmware on it which you can download from GrandStream's website and upload into the gateway easily from the bin file. Otherwise everything basically worked out of the box and I was up and running within minutes.
Res, 2022-03-11
on Amazon
Working for telephone
It works . serves my purpose..thanks Received from benediction store.
Amazon customer, 2022-03-03
on Amazon
Finally got rid of AT&T thanks to this ATA
I used this at my office to run an Avaya Partner Plus PBX phone system with 4 roll over (hunting) lines. I currently have Voip.ms configured with this box and it is working perfectly. Configuring the ATA is not easy but also not to difficult to setup if you watch a few youtube videos. Audio quality is very good and better than the AT&T POTS lines in our area. we have been using this box for about 3 months now and it is working perfectly. Highly recommend this ATA if you are looking for an analog telephone adapter.
Conrad A. Buchler Jr, 2021-08-10
on Amazon
