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://farathesis.farafile.ir/file/22032/پرسشنامه-استاندارد-عملکرد-تیم-(مایکل-وست-2004)