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.
EchoLink, D-Star and QSONet (CQ100) https://qso365.co.uk/2011/03/echolink-d-star-and-qsonet-cq100/