Statement on the Open Source Software of Yealink IP Phones
Yealink IP Phone products utilize some software from the open source community. Therefore, you must obtain the licenses according to the specific license terms applicable to the software. The following table lists the license information of the open source software used by Yealink T3X, T4XU, and T5XW IP phone series, for reference only. Yealink will provide the source code and license of the open source software as you need.