Joining Telephone Cable How Can I Use Broadband Internet In My Toshiba 4200 Series Laptop?ive Toshiba V9.0 Modem?

How can i use broadband internet in my toshiba 4200 series laptop?ive toshiba V9.0 modem? - joining telephone cable

that only the port to reach the phone line I use to use dial-up Internet connection. The no port for the broadband cable has RJ-45 I guess. Council may, I