Grandstream Networks GXW400x User Manual

 

Grandstream Networks, Inc. 

Page 4 of 31  

 

 

Thank you for purchasing the Grandstream GXW–400x IP Analog FXS Gateway.  The GXW–400x is a 
cost effective, easy to use and easy to configure IP communications solution for any business. The 
GXW–400x supports popular voice codecs and is designed for full SIP compatibility and interoperability 
with 3

rd

 party SIP providers, thus enabling you to fully leverage the benefits of VoIP technology,  integrate 

a traditional phone system into a VoIP network, and efficiently manage communication costs. 
 
This manual will help you learn how to operate and manage your GXW FXS Analog IP Gateway and 
make the best use of its many upgraded features including simple and quick installation, 3-way 
conferencing, and direct IP-IP Calling.  This IP Analog Gateway is very easy to manage and scalable, 
specifically designed to be an easy to use and affordable VoIP solution for the small – medium business 
or enterprise.   
 
 

The new GXW–400x series has a compact and quiet design (no fans) and offers superb audio quality, 
rich feature functionality, strong security protection, and good manageability. It is auto-configurable, 
remotely manageable and scalable.  
 
The GXW–400x  features 4 or 8-port FXS interface for analog telephones, dual 10M/100Mbps network 
ports with integrated router, PSTN life line in case of power failure, and an RS232 serial port for 
administration. In addition, it supports 2 SIP account profiles, caller ID for various countries/regions, T.38 
fax, 1 or 2-stage dialing, flexible dialing plans, security protection (SIPS/TLS), comprehensive voice 
codecs including G.711 (a/u-law), G.723.1, G.726, G.728, G.729A/B/E and iLBC.   

 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. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

•  This document is contains links to Grandstream GUI Interfaces.  Please remember to download these 

examples

  http://www.grandstream.com/GUI/GUI_GXW–400x 

 for your reference. 

 

•  This document is subject to change without notice.  The latest electronic version of this user manual 

is available for download from the following location: 

 

 

•  Reproduction or transmittal of the entire or any part, in any form or by any means, electronic or print,