Grandstream HT503 User Manual - Manual (Page 6)

FIRMWARE VERSION 1.0.14.1 HT503 USER MANUAL Page 4 of 64
GNU GPL INFORMATION
HT503 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 .