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.
http://dlweb.farafile.ir/file/45201/پاورپوینت-پودمان-دوم-کتاب-نقشه-کشی-گاز-خانگی-و-تجاری