User's Manual

Firmware Version 1.0.0.11
GXP1610/GXP1620/GXP1625 User
Guide
Page 7 of 31
WELCOME
Thank you for purchasing Grandstream Small Business IP phone GXP1610/GXP1620/GXP1625. It is a
next generation small-to-medium business IP phone: the GXP1620/GXP1625 features 2 lines with 2 SIP
accounts, superior HD wideband audio, 132 x 48 backlit graphical LCD; the GXP1610 supports 2 lines
with 1 SIP account, 132 x 48 graphical LCD. The GXP1610/GXP1620/GXP1625 delivers rich features of
3 XML programmable context-sensitive soft keys, dual network ports with PoE (GXP1625 only), EHS
(Electronic Hook-Switch) with Plantronics headsets, and 3-way conference, superb full-duplex hands-free
speakerphone with advanced acoustic echo cancellation, advanced security protection for privacy, and
compatible with Grandstream UCM Features. It is a perfect choice for small-to-medium businesses
looking for a high quality, feature rich IP phone with affordable cost.
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 the GXP1610/GXP1620/GXP1625 as it may cause
damage to the products and void the manufacturer warranty.
This document is subject to change without notice. The latest electronic version of this user manual is
available for download here:
http://www.grandstream.com/support
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.
FCC Caution:
Any Changes or modifications not expressly approved by the party responsible for compliance could void
the user's authority to operate the equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.