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://mazrae-asia.farafile.ir/file/38278/جزوه-انتقال-جرم--دکتر-مولایی--دانشگاه-صنعتی-شریف