How do I get unlimited prepaid t-mobile Motorola v3 razor minutes?

when someone calls me from their home Verizon phone to my mobile Verizon phone, do i lose minutes?
i wanted to know that when my son calls me from our verizon home phone to my mobile Verizon phone, do i lose minutes?
also if he calls me from his Verizon mobile phone to my Verizon mobile phone then do i still lose minutes? its not a family plan.
please answer both questions if possible.
