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.
[iOS] 無須對講機,有Talkbox iPhone也可變身對講機! https://qooah.com/2011/01/28/ios-iphone-walkie-talkie/