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.
大きな地震で停電があったので、サーバーとPCにつながっているUPSの設定を見直した話し https://www.5cho-me.com/archives/187553