Grandstream is a registered trademark and Grandstream logo is trademark of Grandstream Networks, Inc.
in the United States, Europe and other countries.
CAUTION
Changes or modifications to this product not expressly approved by Grandstream, or operation of this
product in any way other than as detailed by this User Manual, could void your manufacturer warranty.
WARNING
Please do not use a different power adaptor with your devices as it may cause damage to the products and
void the manufacturer warranty.
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HT81x User Guide
GNU GPL INFORMATION
The firmware for the HT81X contains third-party software licensed under the GNU General Public License
(GPL). Grandstream uses software under the specific terms of the GPL. Please see the GNU General
Public License (GPL) for the exact terms and conditions of the license.
Grandstream GNU GPL related source code can be downloaded from Grandstream web site from:
Placing a Phone Call............................................................................................................................ 31
Direct IP Calls ...................................................................................................................................... 31
Call Hold .............................................................................................................................................. 32
Call Transfer ......................................................................................................................................... 32
Blind Transfer ................................................................................................................................ 32
Attended Transfer ......................................................................................................................... 33
Voice Mail ............................................................................................................................................. 34
VM Notification .............................................................................................................................. 34
Accessing VM ............................................................................................................................... 34
This document describes the basic concept and tasks necessary to use and configure your HT81X. And it
covers the topic of connecting and configuring the HT81X, making basic operations and the call
features.Please visit http://www.grandstream.com/supportto download the latest “HT81XAdministration
Guide” to have more visibility about the configurable settings of your HandyTones.
This section documents significant changes from previous versions of user guide for HT81X. Only major
new features or major document updates are listed here. Minor updates for corrections or editing are not
documented here.
Firmware Version 1.0.0.5 (Only for HT818)
This is the initial version for HT818.
Firmware Version 1.0.5.5
No major changes
Firmware Version 1.0.3.7
No major changes
Firmware Version 1.0.3.2
No major changes
Firmware Version 1.0.2.7
No major changes
Firmware Version 1.0.2.3
Added network check mechanism to enable or disable WAN port web access.
The HT81X analog telephone adapters provides transparent connectivity for analog phones and faxes to
the world of internet voice. Connecting to any analog phone, fax or PBX, the HT81Xare an effective and
flexible solution for accessing internet-based telephone services and corporate intranet systems across
established LAN and internet connections. The Grandstream Handy TonesHT81Xare a new addition to the
popular HandyTone ATA products family. This manual will help you learn how to operate and manage your
HT81X analog telephone adaptors and make the best use of its many upgraded features including simple
and quick installation, 3- way conferencing, direct IP-IP Calling, and new provisioning support among other
features. This HT81Xare very easy to manage and configure, and specifically designed to be an easy to
use and affordable VoIP solution for both the residential user and the teleworker.
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HT81x User Guide
HT812 / HT814 / HT818
Support dual 10/100/1000Mbps Ethernetport, 2 SIP profiles through 2
FXS ports for HT812, 4 FXS port for HT814 and 8 FXS port for HT818
Support 3-way voice conferencing.
Support wide range of caller ID formats.
Support advanced telephony features, including call transfer, call
forward, call-waiting, do not disturb, message waiting indication,
multi-language prompts, flexible dial plan and more.
Support T.38 Fax for creating Fax-over-IP.
TLS and SRTP security encryption technology to protect calls and
accounts.
Automated provisioning options include TR-069and XML config files.
Failover SIP server automatically switches to secondary server if main
server loses connection.
Use with Grandstream’s UCM series of IP PBXs for Zero Configuration
provisioning.
Strong AES encryption with security certificate per unit
GR-909 Line Testing Functionalities.
Exceptional voice quality with wide-band HD codec
PRODUCT OVERVIEW
The HT81X are 2/4/8 ports analog telephone adapters (ATA) that allows users to create a high-quality and
manageable IP telephony solution for residential and office environments. Their ultra-compact size, voice
quality, advanced VoIP functionality, security protection and auto provisioning options enables users to
take advantage of VoIP on analog phones and enables service providers to offer high quality IP service.
The HT81X are an ideal ATAs for individual use and for large scale commercial IP voice deployments since
they permit small and medium businesses to create integrated IP and PSTN telephony systems that
efficiently manage communication costs. HT81X’s inclusion of an integrated NAT router and dual
10/100/1000Mbps Ethernet WAN and LAN ports enables a shared broadband connection between
multiple Ethernet devices as well as the extension of VoIP services to analog phones.
Feature Highlights
The following table contains the major features of the HT81X:
Table 1: HT81XFeatures at a Glance
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