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.
https://9lib.net/document/yr305e4j-doktora-tezi̇-maki̇na-mühendi̇sli̇ği̇-ana-bi̇li̇m-dali.html