answer: Brown called Mr. Blank. Miss Grey wrote Brown's number down. Mr. Blank will call back.
documents: #Person1#: Any messages, Miss Grey?
  #Person2#: Just one, Mr. Blank. You had a telephone call from someone called Brown, David Brown.
  #Person1#: Brown? I don't seem to know anyone called Brown. What did he say?
  #Person2#: He wouldn't say. But it sounded important. I told him you'd phone him as soon as you got back.
  #Person1#: Well, I'd better do it then, I suppose. Er...you've got his phone number, haven't you?
  #Person2#: Yes, it's 633201.
  #Person1#: 622301.
  #Person2#: No, 633201.
  #Person1#: Oh, I'd better write it down, otherwise I'll probably forget it.
  #Person2#: I have already done it, Mr. Blank. It's on your desk.