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://tarhekhanasadeghi-h.pdf-doc.ir/file/11572/پاورپوینت-تاريخچه-ايمني-حفاظت-و-بهداشت-کار1