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://afshin.farafile.ir/file/25450/جزوه-لغات-کلیدی-زبان-تخصصی-3-(ویژه-دانشجویان-رشته-مدیریت-دولتی)