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://123dok.co/document/y6e94ggn-겸임-초빙교수-초빙시스템-이용-방법-안내-지원서작성방법.html