I bought the iPhone to someone who bought it in USA so, i had no bill if that what you mean ... but anyway i just told him i didn't like it at all cause my old cellphone had more functions than that c*** and he answered that had no problems to give me back the money
so, i get my money back and he get his iPhone back
And yes, it has headset support... but if you want to send a ringtone, a photo or anything by bluetooth you just can't and for a cellphone so expensive that s*** is like have no bluetooth at all
you need multimedia messages that at least in my country you have to pay and have KB limit if you want to send something to a friend ... not sense at all ...