I recently received a second-hand laptop that doesn’t have a modem. I’ve never bought a modem apart from a computer, so please help me out here.
It’s a Dell Latitude CPX running on XP.
It says it had installed a XJ-CC5560 56K Data Fax Full-Duplex Voice modem.
I’m on dial-up now but hope to switch to DSL soon.
How do I find a modem for it? Please help. Thank you.

1. 2 GB of RAM ; 30 GB internal drive ; internal Combo Drive ; internal 56k modem ; Airport Extreme installed ; 12″ show ; Certified Pre-Owned Mac with 90 day warranty ; OS CD is not included ; OS 10. 4. 11 installed ; Classic Installed ; Used Mac with 90 day PowerMax warranty

…
Buy Used iBook G4/800, 1.2 GB of RAM, 30 GB internal drive, internal Combo Drive, internal 56k modem, Airport Extreme installed, 12″ show at Amazon