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://civils.farafile.ir/file/48087/پاورپوینت-تحلیل-معماری-کافه-نایا-آیوتایا-یک-نمونه-دیگر