answer: #Person1# wants to have the internet on the computer, so #Person2# recommends DEL because it doesn't tie up the phone line.
documents: #Person1#: I'd like to have internet on my computer.
  #Person2#: Do you know what kind of internet you would like to get?
  #Person1#: What are my options?
  #Person2#: You can either get dial-up or DEL.
  #Person1#: Which one would you recommend?
  #Person2#: DEL is the best choice.
  #Person1#: Why is DEL better?
  #Person2#: It's a lot better because it doesn't tie up your phone line.
  #Person1#: What exactly does that mean?
  #Person2#: Well, with dial-up your internet is connected by your phone line.
  #Person1#: That means that I can't use my phone and the internet at the same time, right?
  #Person2#: That's right. You won't have that problem with DEL.