End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
http://datajoo.farafile.ir/file/22194/فیلم-آموزشی-شبیه-سازی-حرکت-پیستون-در-اینونتور-(inventor)