SKU: 28459000871

Grandstream SIP ATA 8 Port FXS Gateway | HT-818

Sale price$1237.03 Regular price$1374.48
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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Description

Grandstream SIP ATA 8 Port FXS Gateway | HT-818Bridge Your Analog Devices to a Powerful VoIP Network The Grandstream HT818 is a high performance 8 port VoIP gateway designed for users who need to integrate analog telephones, fax machines, and other legacy telephony equipment into a modern VoIP network. This powerful device features 8 FXS ports and an integrated Gigabit NAT router, making it an ideal solution for both residential and office environments. Built on Grandstream's market leading SIP

Bridge Your Analog Devices to a Powerful VoIP Network

The Grandstream HT818 is a high-performance 8-port VoIP gateway designed for users who need to integrate analog telephones, fax machines, and other legacy telephony equipment into a modern VoIP network. This powerful device features 8 FXS ports and an integrated Gigabit NAT router, making it an ideal solution for both residential and office environments. Built on Grandstream's market-leading SIP ATA/gateway technology, the HT818 delivers exceptional voice quality, robust security, and outstanding network performance.

Seamless Integration and Crystal-Clear Communication

Experience superior audio with the HT818's support for a wide range of voice codecs, including the wideband HD codec for crystal-clear conversations. It supports 3-way voice conferencing per port and advanced telephony features like caller ID, call waiting, and call forwarding. For businesses that still rely on faxing, the HT818 includes T.38 Fax-over-IP support for reliable and efficient fax transmission.

Robust Security and Simplified Management

Security is paramount in modern communication. The HT818 employs strong AES encryption with a unique security certificate per unit to protect your calls and accounts. Automated and secure provisioning options, including TR-069, simplify mass deployment and device management. The dual Gigabit network ports ensure a high-performance connection, and the integrated NAT router provides efficient routing capabilities.

Key Features at a Glance:

  • Supports 2 SIP profiles and 8 FXS ports.
  • Dual 10/100/1000Mbps Gigabit network ports.
  • Exceptional voice quality with a wideband HD codec.
  • 3-way voice conferencing per port.
  • Supports T.38 Fax for reliable Fax-over-IP.
  • Strong AES encryption for enhanced security.
  • Automated provisioning with TR-069.
  • High-performance NAT router.

Technical Specifications

Interfaces
Telephone Interfaces Eight (8) RJ11 FXS ports.
Network Interface Two (2) 10/100/1000Mbps RJ45 ports.
LED Indicators POWER, NET1, NET2, PHONE1, PHONE2, PHONE3, PHONE4, PHONE5, PHONE6, PHONE7, PHONE8.
Factory Reset Button Yes.
Voice, Fax, Modem
Telephony Features Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference.
Voice Codecs G.711 with Annex I (PLC) and Annex II (VAD/CNG), G.722, G.723.1, G.729A/B, G.726-32, iLBC, OPUS, dynamic jitter buffer, advanced line echo cancellation.
Fax over IP T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through.
Short/Long Haul Ring Load 2 REN, up to 1km on 24AWG line.
Caller ID Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID.
Disconnect Methods Busy Tone, Polarity Reversal/Wink, Loop Current.
Signaling
Network Protocols TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, SSH, SIP (RFC3261), STUN, SRTP, TR-069, TLS, L2TP, OpenVPN
QoS Layer 2 (802.1Q VLAN, 802.1p) and Layer 3 (ToS, DiffServ, MPLS)
DTMF Method In-audio, RFC2833 and/or SIP INFO.
Provisioning and Control HTTP, HTTPS, SSH, TFTP, TR-069, secure and automated provisioning using AES encryption.
Security
Media SRTP/TLS/SIPS/HTTPS
Physical
Universal Power Supply Input: 100-240VAC, 50-60Hz; Output: 12V/1.5A.
Environmental Operational: 32º – 123ºF or 0º – 50ºC; Storage: 14º – 140ºF or -10º – 60ºC; Humidity: 10 – 90% Non-condensing.
Dimension and Weight (L)180mm x (W)120mm x (H)36mm, 356g.
Compliance
Compliance FCC/CE/RCM.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 28459000871

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4.2 ★★★★★
Based on 27 reviews
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Verified Purchase
lylah
Cuba, US
★★★★★ 5
comfortable and firm!!
Size: 57 Inch, Color: Light Grey, Size: 57 Inch, Color: Light Grey
this pillow is huge i’m 5’8 and it’s perfect, as soon as i laid down it relived pressure in my back, i get hot fast and you can feel the cooling silk like texture, it’s weighted aswell, as soon as i opened it, it fluffed up an it’s been about 2 hours since and it’s already huge, it says 24-48 hrs to fluff up fully but idk how much bigger it could get lol it’s definitely worth the few extra dollars
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
W
Verified Purchase
Weekly Shopper Jessica Marie
Whiting, US
★★★★★ 5
I must have for pregnant women! Definitely helps sleep and comfort for sleeping!!
Size: 57 Inch, Color: Light Grey, Size: 57 Inch, Color: Light Grey
I do love this pillow, it does take up a lot of space on my queen bed! But when I wrap my legs around the pillow, it gives me much relief on my back! It also has basically a built-in pillow so you don’t even need to use a pillow! I love that I was able to unzip the outer material and wash it! You can use it to sit up and support your back, and when the baby comes, you can use to help with feeding! sometimes I have to turn it completely on the other side if I want to turn over, it’s big!! heavy! Very soft! Not flat at all! Firmness is great! Height is great! I highly recommend! I’m also five months! i got it about 2 months ago!!
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Reviewed in the United States on February 13, 2026
A
Verified Purchase
Ashleigh
Carnegie, US
★★★★★ 5
Buy this one!
Size: 65 Inch, Color: Light Grey
This was a great buy! I looked through many many different options before buying and this one was the one I chose. Definitely a good choice. It keeps its shape and is cool to the touch which is amazing for a hot sleeper. It helps so much with my sore hips being 7 months pregnant. Fits great on my queen size bed with room still got my partner to sleep comfortably as well. Definitely recommend!
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Reviewed in the United States on May 19, 2026
M
Verified Purchase
Michele strauss
Phoenix, US
★★★★★ 5
Great pregnancy pillow!!
Size: 57 Inch, Color: Light Grey
I LOVE this pillow. It arrived quickly and was packaged very well. It was pretty squished when it arrived, but fluffed up very quickly! I didn't notice any odor when I unpackaged it. Love that the cover can just zip off for easy cleaning. It's helped a ton with my hip pain this pregnancy. It stays pretty cool, especially when compared to my normal pillow. First night I had it was the best sleep I've had in a long time and I look forward to laying down with it. Only bummer is it takes up quite a lot of room on the bed. I don't mind, but I do feel bad for my husband who I share with lol.
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Reviewed in the United States on May 17, 2026
A
Verified Purchase
Amanda S
Whiting, US
★★★★★ 4
good
This pregnancy pillow feels really comfortable and provides good support while sleeping. It is a bit bulky, so sometimes I switch back to my regular pillow, but overall, it still feels really good and helps me get more comfortable at night.
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Reviewed in the United States on May 11, 2026

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