User's Manual
FIRMWARE VERSION 1.0.4.23   GXP1100/GXP1105 USER MANUAL     Page 7 of 46 
WELCOME 
Thank you for purchasing Grandstream GXP1100/GXP1105  Small Business IP Phone. 
GXP1100/GXP1105 is a next generation small business IP phone that features up to 2 calls with 1 SIP 
account,  4  programmable keys,  single  network  port, integrated  PoE  (GXP1105 only).  The 
GXP1100/GXP1105 delivers superior HD audio quality, leading edge telephony features, automated 
provisioning for easy deployment, advanced security protection for privacy, and broad interoperability with 
most 3rd party SIP devices and leading SIP/NGN/IMS platforms. It is a perfect choice for small business, 
lobby, and hotel applications looking for a high quality, basic IP phone with attractive 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 GXP1100 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. 










