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://iengineer.farafile.ir/file/18385/سوالات-آزمون-کارشناسی-ارشد-مجموعه-زبان-و-ادبیات-فارسی-سال-87