Na ja, sehr gut, aber....
Sapheroth asked for transfer from phone to phone.
On the phone you are sending from, you do not need to switch BT on.
On the receiving phone you do, go to:
Menu - Connectivity - Bluetooth - Turn on (Quick menu = Press joy - * - 1 - 1)
Don't forget that this phone has to be visible to others:
Menu - Connectivity - Bluetooth - Options - Visibility - Show phone. (Quick menu = Press joy - * - 1 - 5 - 1 - Select)
Now go to the file you want to send (ringtone or whatever) on the sending phone, and choose More - Send - Via Bluetooth
Your phone will begin to scan the area, and show you the phones available.
Just select the one you want to send to.