Routing Received Faxes to PC

Hi everyone,

A friend of mine had an older HP OfficeJet 520 (printer w/ fax), and it featured the option to save an incoming fax to the PC instead of printing it out. Now he picked up an HP Photosmart C6180 all-in-one, and it doesn't seem to have the same option.

Is there any software anyone knows about that can use an all-in-one printer's fax function to "route" the incoming faxes to the PC instead of printing? I know we could use a dial-up modem to send & receive the faxes from the PC, but he wants to use the HP all-in-one to do it.