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.
中風的檢查 https://www.brain-classroom.com/2015/01/%e4%b8%ad%e9%a2%a8%e7%9a%84%e6%aa%a2%e6%9f%a5/