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/z12865vy-電子航法研究所について概要主な研究施設等発表内容民間航空分野における先進的な無線システム次世代航空通.html