SKU: 27547625927

Grandstream HT881 8-Port FXO Analog Gateway

Sale price$1763.02 Regular price$1958.91
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Description

Grandstream HT881 8-Port FXO Analog GatewayBridge Your Analog Phone System to a Powerful VoIP Network The Grandstream HT881 is a high density analog FXO gateway designed for businesses looking to integrate their traditional PSTN lines with a modern VoIP network. This powerful device allows you to seamlessly connect up to eight analog telephone lines to any hosted or on premise IP PBX system, making it an ideal solution for medium to large enterprises that want to leverage their existing

Bridge Your Analog Phone System to a Powerful VoIP Network

The Grandstream HT881 is a high-density analog FXO gateway designed for businesses looking to integrate their traditional PSTN lines with a modern VoIP network. This powerful device allows you to seamlessly connect up to eight analog telephone lines to any hosted or on-premise IP PBX system, making it an ideal solution for medium-to-large enterprises that want to leverage their existing telecom infrastructure while upgrading to the benefits of VoIP. The HT881 features 8 FXO ports, a versatile FXS port for an analog phone or fax machine, and an integrated high-performance NAT router, providing a comprehensive and scalable hybrid telephony solution.

Advanced Features for Uninterrupted Communication

Engineered for reliability and robust performance, the HT881 is packed with advanced features to ensure business continuity. It includes critical lifeline support, which maintains a connection between the FXS and FXO ports during a power outage, guaranteeing that you always have a line for emergency calls. The device supports 3 SIP profiles, offering flexibility and redundancy in your VoIP service connections. For businesses that still rely on traditional faxing, the HT881 provides reliable T.38 Fax-over-IP for efficient and accurate transmission over your IP network.

Uncompromising Security and Simplified Management

Security is paramount in modern communications. The HT881 addresses this with strong AES encryption and unique security certificates per unit to protect all your voice communications. Deployment and ongoing management are streamlined through automated provisioning options using TR-069 and compatibility with Grandstream's Device Management System (GDMS). This allows for a centralized interface to provision, manage, monitor, and troubleshoot devices, significantly enhancing operational efficiency. With features like a failover SIP server that automatically switches to a secondary server if the main one fails, the HT881 is built for high availability and superior voice quality.

Technical Specifications

Interfaces
Analog Telephone FXO Ports 8 x RJ11 ports
Analog Telephone FXS Ports 1 x RJ11 port with lifeline support
Network Interfaces 2 x 10/100/1000Mbps RJ45 ports (1 WAN, 1 LAN)
NAT Router Yes, high-performance
LED Indicators Power, LAN, WAN, FXS, FXO1-FXO8
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/II, G.723.1, G.729A/B, G.726, iLBC, Opus, dynamic jitter buffer, advanced line echo cancellation
Fax over IP T.38 compliant Group 3 Fax Relay up to 14.4kbps and auto-switch to G.711 for Fax Pass-through
Security
Media SRTP/TLS/SIPS
Provisioning TR-069, AES encryption, unique security certificate per unit
Physical
Power Supply DC Input: 12V/1A; PoE Input: 48V/0.5A
Dimensions (L x W x D) 190mm x 100mm x 28mm
Weight 0.46kg
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: 27547625927

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Careful Shopper
Lexington, US
★★★★★ 5
Perfect fit for 2019 Jeep 3.2L engine
Size: (Pack of 1)
No way to really know how a filter is doing without a close examination AFTER it is used, but then the amount of debris trapped by a filter depends on how much debris is generated by the engine. But this filter looks to be quality constriction and is rated to 15,000 miles using synthetic oil. The brand is well known and has been in business for many decades, trusted by many.
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Reviewed in the United States on March 17, 2026
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Mike C.
Belleville, US
★★★★★ 5
Price and Installation is great
Size: (Pack of 1)
Perfect fit and affordable.
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Reviewed in the United States on May 27, 2026
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D.M.
Lexington, US
★★★★★ 5
Excellent, well built filter at a low price
Size: (Pack of 1)
An excellent build quality filter, especially for the money. Definitely top three along with Mobil-One and WIX filters. However, the regular WIX/NAPA Gold has much better filtration efficiency at smaller microns. The WiX XP has much better dirt capacity than either, but actually has lower filtration efficiency than regular WIX. Both are better in their own ways than the Purolator Boss at a few dollars more, but this is still MILES better than Fram or Bosch or STP (or god forbid, SuperTech), etc. and usually the best at a low price on Amazon. If you run long change intervals like 7,500-10,000mi, spring the couple extra dollars for the WIX XP for the dirt capacity. If you want the absolute best filtration efficiency (me) for a 3,000-5,000mi interval, get the regular WIX/NAPA Gold. I don't recommend change intervals longer than 10,000mi, though I still use Mobil One Extended (best value, 20,000mi rated) or Amsoil Signature Series (25,000mi rated but expensive) for the extra protection.
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Reviewed in the United States on January 1, 2026
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Doug Fitzpatrick
Draper, US
★★★★★ 5
Quality filter.
Size: (Pack of 1)
I have been using these filters for years on my Grand Caravan. Wait till they go on sale and stock up on them.
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Reviewed in the United States on May 17, 2026
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Gregg Smith
Port Orchard, US
★★★★★ 4
Good OEM replacement, but check the contents
Size: (Pack of 1)
This filter was perfect for my 2020 ram 1500, however I had to get a replacement because the gasket was not included in the box as delivered. I contacted the seller and they replaced it within two days. The replacement unit had both the filter, and the gasket in the box it should've been.
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Reviewed in the United States on June 27, 2025

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