Why call to give money

Users questions: For example: make and receive mobile Mobile, China Unicom make and receive Unicom, which is why the net call charges? You on the QQ, QQ you and others a voice or video, Tencent no charge, ah, video voice chat on QQ is equivalent to net phone, this is free. Why Telecom Operation Business have to pay?
Experts answer: The Internet is access to information, to share the spirit, so communication is used to exchange free of charge, so charges
  • This information provided by the users.Thanks!