
 
 
Grandstream Networks, Inc. GXV3175 USER MANUAL    Page 29 of 68 
    FIRMWARE VERSION 1.0.0.32 Updated : 11/2010 
 
2 
Hide Keypad 
3  Switch between English/Chinese input. 
4 
Switch between Letter/Number/Symbol 
5 
Delete 
 
NOTE: External Keyboard could also be used by plugging via USB port on the phone.