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.
https://www.bennubook.com/book/157424/کتاب-پشت-دیوارهای-بلند-اثر-آذر-آریان-پور-ناشر-آمه