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://123deta.com/document/rz32p6eq-Microsoft公募システム改修係る事前確認公募IPA独立行政法人情報処理推進.html