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://eleceng.farafile.ir/file/29409/آزمون-ریاضی-پایه-دوازدهم-انسانی-آزمون-1-تا-5