I heard a very shocking news today from one of my professors. He was taking about the concept of pricing or something, when he said that Cellphone companies(network ) , all around the world, charge us for missed calls too.. It happens to everybody since you that network for that time. They are not cared about whether you get to talk to the person or not but you still get to be charged for the usage of network. Already we are being looted with the all the taxes possible and now we also know that this happening. I really felt a kinda stink with the amount of revenue these guys make.