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://a-mehdi.pdf-doc.ir/product/64728/دانلود-اقدام-پژوهی-درمورد-چگونه-حل-مشکل-کم-رویی-دانش-اموز1