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HT841/HT881

Analog FXO Gateway
The HT841/881 FXO gateway series enables businesses of all sizes to create an easy-to-deploy VoIP solution. These FXO gateways offer the ability to seamlessly connect multiple locations and all devices within an office to any hosted or on premise IP PBX network to make deployments as easy as possible. 

  • Supports 3 SIP profiles through 1 FXS port and 4/8 FXO ports
  • High-performance NAT router
  • Lifeline support (FXS port will be hard-relayed to FXO port) in case of a power outage
  • 3-way voice conferencing per port
  • Automated & secure provisioning options using TR069
  • Supports T.38 Fax for reliable Fax-over-IP
  • Failover SIP server automatically switches to secondary server if the main server loses connection
  • Strong AES encryption with security certificate per unit

Grandstream Device Management System

GDMS provides a FREE centralized interface to provision, manage, monitor and troubleshoot Grandstream products, including device management, account management, device configuration, firmware upgrades, device monitoring, intelligent alarm, and statistical analysis, individually or in batches of devices by site, group and model. This powerful cloud management platform adds robust security features to protect enterprise networks, including bank-grade TLS encryption from end-to-end, two-factor login authentication to protect your data security, two-way certificate verification and encryption of all device information. By offering a centralized, secure and zero-touch management for Grandstream endpoints, GDMS is ideal for enterprises, service providers and multi-site businesses as it allows them to easily deploy and manage large networks of Grandstream solutions. Visit gdms.cloud to sign up for free today!

Android and iOS mobile users can access the GDMS mobile app from any device by downloading for free through the app store, or get it on google play.

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Product Comparison


NameHT841/HT881
SPECS
LINES 3 lines
AUDIO CONFERENCING 3-Way Voice Conferencing Per Port
TELEPHONE INTERFACES HT841: 4 RJ11 FXO ports/1 RJ11 FXS HT881: 8 RJ11 FXO ports/1 RJ11 FXS
NETWORK INTERFACES Two 10/100/1000Mbps RJ45 ports, one with 802.3af PoE-PD support Note: Up to 1000Mbps in Bridge mode, up to 100Mbps in NAT mode
LED INDICATORS POWER, NET1, NET2, FXS, FXO
TELEPHONY FEATURES Caller ID display or block, call waiting, flash, blind or attended transfer, forward,hold, do not disturb, 3-way conference
FAX OVER IP T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through

Related Products



  • Software configurable E1/T1/ J1 ports, support PRI, SS7, MFC R2
  • Dual Gigabit auto- sensing RJ45 network ports with integrated NAT router
  • Supports a wide- range of voice codecs, including Opus, G.722, G.729, iLBC, and more
  • TLS and SRTP security encryption technology to protect calls and accounts
  • Automated provisioning by HTTP/TFTP with XML config files
  • Supports T.38 Fax for creating Fax-over-IP
  • Supports multi- language voice prompts

  • 16/24/32 FXS ports, GXW4248 includes 2 50-pin Telco connectors
  • 1 Gigabit network port
  • 132x48 backlit graphic display with support for multiples languages
  • 4 SIP server profiles per system, independent SIP account per port
  • Designed and tested for full interoperability with leading IP-PBXs, soft-switches and SIP-based environments
  • Advanced security protection with SRTP/TLS/HTTPS

  • 4 or 8 ports
  • 2 10/100 Mbps network ports
  • Comprehensive codec support, caller ID, flexible dial plans and security protection
  • Advanced security protection with SRTP
  • Designed and tested for full interoperability with leading IP-PBXs, soft-switches and SIP-based environments
  • PSTN Failover on power failure