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://pooryafile.farafile.ir/file/36901/پاورپوینت-تکنولوژی-گروهی-و-نقش-آن-در-کاهش-هزینه-های-تولید