Is this Lenovo 560 a new system? If so, for dial-up networking to work it will need a modem.

Older Desktops used to have modems installed by default. I don't know about laptops, but certainly laptops and Desktops nowadays do not generally come with modems.

If it doesn't have one installed as hardware then you will need a USB Dial-up Modem. Connect that to the computer using a spare USB port, then connect the telephone line to the USB modem.

I would give you a few example links, but I am in the UK and my own search results are generally UK based. If you use Google to search for USB modem "dial up " you should find some links

Mark