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://prozheone.farafile.ir/file/46425/سؤالات-و-کلید-کنکور-ارشد-مکانیک-1388-تا-1394