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/21240/سورس-کد-پیاده-سازی-سیستم-خبره-با-پرولوگ-(prolog)