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.
CS的简单案例 https://blog.wongcw.com/2018/12/29/cs%e7%9a%84%e7%ae%80%e5%8d%95%e6%a1%88%e4%be%8b/