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Grandstream Networks Analog IP Gateway GXW-400x GXW-400x User Manual

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APPLICATION Diagram 
There are three scenarios where the GXW-400x series can be effectively used to enable any 
business to leverage the benefits of VoIP and the Internet.  
 
Scenario One: 
GXW- 400x FXS Gateway Configuration 
PBX Scenario, VoIP 
 
Anywhere in the world 
 
Scenario Two: 
GXW- 400x FXS Gateway Configuration 
No PBX Scenario, VoIP 
 
 
 
 
INTERNET 
CLOUD 
PB
GXW FXS Series
4 or 8 Ports 
PSTN 
Analog 
Lines 
Trun
Lin
FXS Trunks 
Anywhere in the world 
INTERNET 
CLOUD 
GXW FXS Series
4 or 8 Ports 
PSTN 
Analog 
Lines 
FXS Gateway acts as a ‘virtual office’, 
connecting analog lines directly to the 
gateway 
                                           info@grandstream.com 
  GXW-400x Quick Install Guide,   p. 3 
Firmware 1.0.0.17 
 
Updated:  11/2006