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://rayanshahr.farafile.ir/file/39621/پاورپوینت-درس-اول-مطالعات-اجتماعی-هشتم-تعاون