User's Manual
GXP1610/GXP1620/GXP1625/GXP1628/GXP1630 User Guide Page 6 of 42 
GNU GPL INFORMATION 
GXP1610/GXP1620/GXP1625/GXP1628/GXP1630 firmware contains third-party software licensed under 
the GNU General Public License (GPL). Grandstream uses software under the specific terms of the GPL. 
Please see the GNU General Public License (GPL) for the exact terms and conditions of the license.  
Grandstream  GNU  GPL  related  source  code  can  be  downloaded  from  Grandstream  Web  site  from: 
http://www.grandstream.com/support/faq/gnu_gpl. 










