Welcome; Safety Compliances; Warranty - Grandstream Networks HT-488 User Manual

W
ELCOME
Thank you for purchasing Grandstream's HT488, the affordable, feature rich, Analog Telephone
Adaptor/IAD. The HT488 is based on SIP standard and features both an FXS and FXO port for Internet
data, voice, and PSTN networks. It functions as an "all-in-one" IAD. The HT488 features a high level of
integration including, but not limited to an integrated router, an analog telephone FXS interface and a
programmable FXO gateway for toggling operations between the IP network (SIP Server platform) and
the PSTN network. The HT488 supports the feature of "hop-on/hop-off" calling.
This manual will help you learn how to operate and manage your HT488 Analog Telephone Adaptor/IAD
and make the best use of its many features including simple and quick installation, 3-way conferencing,
and remote call origination and "hop-on/hop-off" calling using the programmable PSTN FXO port. The
HT488 is easy to manage and configure, and is an affordable VoIP solution for both the residential user
and the remote user.
This document is subject to changes without notice. The latest electronic version of this user manual can
be downloaded from the following location:
S C
AFETY OMPLIANCES
The HT488 adaptor complies with FCC/CE and various safety standards. The HT488 power adaptor is
compliant with UL standard. Only use the universal power adapter provided with the HT488 package.
The manufacturer's warranty does not cover damages to the phone caused by unsupported power
adaptors.
W
ARRANTY
If you purchased your HT488 from a reseller, please contact them for replacement, repair or refund. If
you purchased the product directly from Grandstream, contact your Grandstream Sales and Service
Representative for a RMA (Return Materials Authorization) number before you return the product.
Grandstream reserves the right to remedy warranty policy without prior notification.
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.

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This document is contains links to Grandstream GUI Interfaces. Please remember to download these
examples http://www.grandstream.com/user_manuals/GUI/GUI_HT488.rar
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This document is subject to change without notice. The latest electronic version of this user manual is
available for download from the following location:
http://www.grandstream.com/user_manuals/HT4488_User_Manual.pdf
•
Reproduction or transmittal of the entire or any part, in any form or by any means, electronic or print,
for any purpose without the express written permission of Grandstream Networks, Inc. is not
permitted.
Grandstream Networks, Inc.
http://www.grandstream.com/resources.html
HT488 User Manual
Firmware 1.0.3.86
for your reference.
Page 4 of 31
Last Updated: 7/2007