iPhone Deactivation: Possible?

[blinky2379]

I got an iPhone from a friend of mine, but it still has his number on it. I can restore it, but that just gets rid of the songs and such. How do I deactivate his account and activate mine?

 

[unity]

Get a new sim. Thats all, that sim will be associated with your account and number. He should have taken his.