answer: #Person2# recommends DEL to #Person1# because DEL isn't connected through the phone line.
documents: #Person1#: I would like to order some internet today.
  #Person2#: What kind would you like?
  #Person1#: What kind of internet is there?
  #Person2#: You can get DEL or dial-up.
  #Person1#: Which of those two is best?
  #Person2#: I would recommend DEL.
  #Person1#: So that one better?
  #Person2#: It's better because it doesn't tie up the phone.
  #Person1#: What do you mean by that?
  #Person2#: DEL isn't connected through your phone line, but dial-up is.
  #Person1#: So then I can't use my phone if I'm on the internet?
  #Person2#: That's correct. With DEL you can do both.