mobile

Currently I have a Sprint Galaxy S4, and I wanted to install a ROM, but which should not install, install HellKat, but this was not receiving calls, but if I could do. What I have observed is that the roms come in the description for baseband.

Reviewing my galaxy I found that the baseband is L720VPUAMDC,
This baseband I can change?
since I have seen that most of the ROMS are for other basebands.

Or I can install any ROM for Sprint?

Thanks for your time ...