User Manual

GNU GPL INFORMATION
Yealink Skype for Business phone firmware contains third-party software under the GNU General Public License (GPL).
Yealink uses software under the specific terms of the GPL. Please refer to the GPL for the exact terms and conditions of
the license.
The original GPL license, source code of components licensed under GPL and used in Yealink products can be
downloaded from Yealink web site:
http://www.yealink.com/GPLOpenSource.aspx?BaseInfoCateId=293&NewsCateId=293&CateId=293.