Can you switch a smart phone with a different number to yours onto your regular phone?

My father passed away recently, and he left behind a smart phone on the same plan as me. My question is: Can you switch a smart phone (with his number on it) and swap it for mine (a regular phone) so therefore I would have the phone that he had with all the same benefits he was paying for?|||Sorry about your loss. To answer your question: Yes. The thing is, since your phone is just a regular phone, your going to have to set your number up with a data plan. On your fathers phone, dial *228 and go follow the instructions.