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://datajoo.farafile.ir/file/34058/پرسشنامه-پردازش-پس-از-رویداد-(راچمن-و-همکاران--2000)