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://a-mehdi.pdf-doc.ir/file/42564/دانلود-تحقیق-درمورد-تعيين-مكان-و-اندازه-DG