User Guide
Grandstream Networks, Inc.  GXP User Manual  Page 2 of 44 
       Firmware 1.2.5.3     Last Updated: 03/2011 
TABLE OF CONTENTS 
GXP USER MANUAL 
WELCOME ................................................................................................................................................................. 4
INSTALLATION......................................................................................................................................................... 5 
EQUIPMENT PACKAGING ............................................................................................................................................. 5 
CONNECTING YOUR PHONE ........................................................................................................................................ 5 
GXP-2000 EXTENSION UNIT ....................................................................................................................................... 5 
SAFETY COMPLIANCES ................................................................................................................................................ 7 
WARRANTY ................................................................................................................................................................. 7 
PRODUCT OVERVIEW ............................................................................................................................................ 8 
USING THE GXP SIP ENTERPRISE PHONE ..................................................................................................... 13 
GETTING FAMILIAR WITH THE LCD .......................................................................................................................... 13 
MAKING PHONE CALLS ............................................................................................................................................. 17 
ANSWERING PHONE CALLS ....................................................................................................................................... 20 
PHONE FUNCTIONS DURING A PHONE CALL ............................................................................................................. 20 
CALL FEATURES ........................................................................................................................................................ 23 
CUSTOMIZED LCD SCREEN & XML ......................................................................................................................... 23 
CONFIGURATION GUIDE ...................................................................................................................................... 24 
CONFIGURATION VIA KEYPAD .................................................................................................................................. 24 
CONFIGURATION VIA WEB BROWSER ...................................................................................................................... 27 
SAVING THE CONFIGURATION CHANGES ................................................................................................................... 41 
REBOOTING THE PHONE REMOTELY ......................................................................................................................... 41 
SOFTWARE UPGRADE & CUSTOMIZATION .................................................................................................. 42 
FIRMWARE UPGRADE THROUGH TFTP/HTTP .......................................................................................................... 42 
CONFIGURATION FILE DOWNLOAD ........................................................................................................................... 43 
RESTORE FACTORY DEFAULT SETTING ....................................................................................................... 44 
TABLE OF FIGURES 
GXP USER MANUAL 
Figure 1: Connecting the GXP–2000 and the GXP–Extension
  ...................................................... 6
Figure 2: GXP–2000 Internal Headset Wiring Schema
  .................................................................. 7
Table 10: GXP Keypad Buttons
  .................................................................................................... 16
Figure 3: Keypad GUI Flow
  ............................................................................................................ 26
TABLE OF TABLES 
GXP USER MANUAL 
Table 1: Equipment Packaging
  ....................................................................................................... 5
Table 2: GXP Connectors
  ............................................................................................................... 5
Table 3: GXP Product Models
  ......................................................................................................... 8
Table 4: GXP Comparison Guide
  .................................................................................................... 9
Table 5: GXP Key Features in a Glance
  ......................................................................................... 9
Table 6: GXP Hardware Specifications
  ......................................................................................... 10










