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/7qv73mdq-應用於MIMOOFDM系統之前置編碼搜尋與時域通道資訊回傳.html