Task: Question Answering
Input (English): Passage: Some slow-moving businesses and government agencies may not accept documents over email , forcing you to fax them in . If you are forced to send a fax , you can do it from your computer for free . I 'll explain to you how fax machines Work ( and why they are so inconvenient ) This is n’t as easy as it should be . When you use a standard fax machine , that fax machine places a phone call to the number you specify . The fax machine at the destination number answers and the document is transmitted over a telephone call . Microsoft Windows even contains a Fax and Scan application that allows you to send faxes . This means that you ’d need a dial-up fax modem . You ’d also need a landline telephone connection and you ’d have to tell people to stay off the phone when you ’re sending faxes , just like in the old dial-up Internet days . This is how I did it : I scanned the document you want to fax , just as if I were going to send that document over email . Once the document was already a file on your computer , congratulations - I did not have to scan anything . With the document now in digital form , I could send it along to a service that would do the annoying fax work for me . Question: What is needed to be connected to the phone line? Option1: Fax machine Option2: digital signal
Output (English): Fax machine