User's Manual
Grandstream Networks, Inc. GXV3140 USER MANUAL  Page 16 of 83 
 FIRMWARE VERSION 1.0.1.18 Updated : 09/2009 
External devices 
SD card   
USB flash drive.   
USB keyboard   
USB mouse   
Figure 8:GXV3140 Keypad 
Table 6:GXV3140 Keypad definition 
Key  Definition 
4 function/soft keys that correspond to the functions displayed on the LCD. 
Line/Account selection. Three independent SIP accounts may be configured, and 
the Line button can be used to choose the line/account to be used. 










