If you are in a Rutgers building that is wired, your department needs to arrange for you to get connected. This will also work if you're in a dorm or a building that is not wired. Dialup networking uses a modem to give you access to the Rutgers network. An ISP or Cable modem. Normally people use ISP's when they are far enough from Rutgers that calling our modems would be too expensive.
Cable modems have the advantage of being a lot faster than a normal modem.
So if your cable provider supports cable modems, you'll probably want to use that. All use of the Rutgers network is governed by the Rutgers Acceptable Use Policy. This, as well as other general policies, is available from the computing policies web page. If you are in a dorm that has been wired, the Dorm Network Project will help you connect. They have student staff in each building, who keep announced office hours.