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://ahmz.farafile.ir/file/19740/پاورپوینت-(اسلاید)-بررسی-عوامل-مؤثر-بر-چندلا-کنی-و-چندلا-تابی