answer: #Person2# explains to #Person1# the reason why #Person2# spends little on handset charge and introduces the advantages of call transfer.
documents: #Person1#: I find that you spend little on handset charge every month. Have you any trick?
  #Person2#: It's simple. You can use call transfer.
  #Person1#: Is it so simple?
  #Person2#: Sure. You know, we spend most of our time at home or in the office every day, so I receive handset calls with the hand-free telephone, so I need pay little for receiving calls.
  #Person1#: It's true.
  #Person2#: Call transfer has many other advantages. When I am in places where network can't cover, such as the high building, I also use call transfer function, which transfers my calls to the hand-free telephone and I will not miss any call.
  #Person1#: That's all?
  #Person2#: In hospitals or on planes, handsets will interfere with some equip-ment, so we must close our handsets. If you set call transfer, the problem will be solved.