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://shahre-online.farafile.ir/file/18498/سوالات-آزمون-کارشناسی-ارشد-مجموعه-علوم-اجتماعی-سال-93