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.
後果概述 https://www.medical-actu.com/zh/%e5%be%8c%e6%9e%9c%e6%a6%82%e8%bf%b0/