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.
[OpenSSL] PSK-TLS server 실행 https://blog.dasomoli.org/openssl-psk-tls-server-%ec%8b%a4%ed%96%89/