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://hami.farafile.ir/file/38868/خلاصه-و-سوالات-تستي-فصل-سوم-کتاب-مالیه-عمومی-و-بودجه-دولتی