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://daneshfile.farafile.ir/file/21603/مقاله-ترجمه-شده-2014-تورم-چرخه-عملیاتی-و-وجوه-نقدی