IP Phone User Manual
GRANDSTREAM GXP21XX/GXV3140/GXV3175 SERIES PHONES  20-BD5320-00 
©
2011 GRANDSTREAM  PAGE 6 OF 45 
1  Overview 
This document describes the configuration procedures required for the Grandstream 
GXP21xx/GXP14xx/GXV31xx phones to be interoperable with BroadWorks. This 
includes the following Grandstream phone models: 
  GXP2100 
  GXP2110 
  GXP2120 
  GXP1450 
  GXV3140 
  GXV3175 
The GXP21xx/GXP14xx/GXV31xx phones use the Session Initiation Protocol (SIP) to 
communicate with BroadWorks for call control. 
This guide describes the specific configuration items that are important for use of 
BroadWorks. It does not describe the purpose and use of all configuration items on the 
GXP21xx/GXP14xx/GXV31xx. For those details, see the GXP21xx/GXP14xx/GXV31xx 
User Manual supplied by Grandstream [1]. 










