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://9lib.co/document/wye6vjeq-以數位式行車紀錄器為基礎之汽車客運車輛監控與管理系統研發計畫.html