Hi there. Quick question: How do you switch handsets with Sprint? I have an Evo and I may pick up a second handset like the Evo Shift, and I would like to be able to easily switch back and forth between the two handsets. When I was with Verizon, all I did was dial *228 from the handset that I wanted to use and follow a few simple commands to activate that phone. Is there something like this for Sprint?